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Math Glossary

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Absolute value Alternate exterior angles Alternate interior angles Angle Annually Area Associative Property of Addition Associative Property of Multiplication Average Base Diagonal Binominal Cylinder Cube Cosine Corresponding angles Coordinate plane Congruent Cone Commutative Property of Multiplication Commutative Property of Addition Coefficient Circumference Chord Domain Distributive Property of Multiplication over Addition Dilation Diameter Acute angle Acute triangle Adjacent angles Central angle Circle Algebraic expression Constant Cube root Decimal Denominator

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Absolute value القيمة المطلقة The distance from a point on thepoint number line to zero Example: |4| = 4 |-4| = 4 Back

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Acute angle زاوية حادة An angle that measures less than a right angle (90°).angle right angle Example: Back

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Acute triangle مثلث حاد الزوايا A triangle that has three acute anglestriangleacute angles Example: Back

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Adjacent angles زوايا متجاورة AnglesAngles that share a common side, have the same vertex, and do not overlapvertex Example: ABD is adjacent to DBC. Back

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Algebraic expression تعبير جبري An expression that is written using one or more variablesvariables Examples: 3x x - 4 2a + 5 a + b Back

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Alternate exterior angles زوايا متبادلة خارجية A pair of angels on the outer sides of two lineslines cut by transversal but on opposite transversal sides of the transversal 1 and 8 and 2 and 7 are alternate exterior angles Back

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Alternate interior angles زوايا متبادلة خارجية A pair of angels on the inner sides of two lineslines cut by transversal but on oppositetransversal sides of the transversal 3 and 6 and 4 and 5 are alternate exterior angles Back

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Angle زاوية A geometric figure formed by two raysrays that have a common endpoint Examples Back

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Annually سنوياً Once a year Back

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Area مساحة The number of square units neededsquare to cover a given surface Example The area is 9 square units Back

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The property which states that for all real numbers a, b, and c, their sum is always the same regardless of their grouping : (a + b) + c = a + (b + c) Example: (2 + 3) + 4 = 2+ (3 + 4) Associative Property of Addition الخاصية التجميعية لعملية الجمع Back

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Associative Property of Multiplication الخاصية التجميعية لعملية الضرب The property which states that for all real numbers a, b, and c, their product is always the same regardless of their grouping : (a. b). c = a. (b. c) Example: (5.6). 7= 5. (6.7) Back

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The sum of a set of numbers divided by the number of addends Example 2,3,4,5,5,8 ( 2+3+4+5+5+8) ÷ 6= 4.5 The mean is 4.5 Average متوسط Back

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Base أساس أو قاعدة A side of a polygon or a face of a solid figure bypolygonfacesolid figure which the figure is measured or named Examples A number used as a repeated factor Examples 8 = 8 × 8 × 8 3 The base is 8. It is used as a factor three times Back

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Binominal كثيرة الحدود The sum of two monomialsmonomials Example x + y 3 5 Back

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Central angle زاوية مركزية An angle formed by two rays with a common vertex at the center of a circleangleraysvertex circle Example: Back

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Chord وتر الدائرة A line segment with endpointsline segment on a circle circle Example Back

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Circle دائرة A closed curve with all points on the curve an equal distance from a given point called the center of the circlepoints Example: Back

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Circumference محيط الدائرة The distance around a circlecircle C = d Back

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Coefficient معامل The number that is multiplied by the variable in an algebraic expressionvariable Example: 5b Back

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Commutative Property of Addition الخاصية الإبدالية لعملية الجمع The property of addition that allows two or more addends to be added in any order without changing the sum; a + b = b + a Examples: c + 4 = 4 + c (2 + 5) + 4r = 4r + (2 + 5) Back

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Commutative Property of Multiplication الخاصية الابدالية لعملية الضرب The property of multiplication that allows two or more factors to be multiplied in any order without changing the product a. b = b. a Examples: 3. c = c. 3 4. 5. y = 5. 4. y 33 Back

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Cone مخروط A solid figure with a circular basesolid figure base and one vertexvertex Example: Back

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Congruent تطابق Having the same size and shape Example: Back

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Constant ثابت A number that appears without a variable in an algebraic expression or equation variable Example: Back

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Coordinate plane النظام الاحداثي A plane formed by two perpendicular number lines called axes; every point on the plane can be named by an ordered pair of numbers.planeperpendicularpointordered pair Example: Back

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Corresponding angles زوايا متناظرة AnglesAngles that are in the same position and are formed by a transversal cutting two or more linestransversallines Example: and 6 are corresponding angles. 2 Back

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Cosine (cos) جيب التمام In a right triangle, the ratio of theright triangle length of the side adjacent to an angle to the length of the hypotenuseanglehypotenuse Example: Back

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Cube مكعب A square prism with six congruent square facessquareprismcongruentfaces Example: Back

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Cube root جذر تكعيبي One of the three equal factors of a number Example: 3 is the cube root of 27. 3 X 3 X 3 = 27 3 = 27 3 Back

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Cylinder اسطوانة A solid figure with two parallel, congruent circular bases connected by a curved surfacesolid figure parallel congruentbases Example: Back

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Decimal عدد عشري A number that uses place value andplace value a decimal point to show values less than one, such as tenths and hundredthstenths hundredths Example: 3.47 Back

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Denominator مقام The number below the bar in a fraction. It tells the total number of equal parts. fraction Example: Back

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Diagonal قطر A line segment that connects two non- adjacent vertices of a polygonline segment verticespolygon Example: Back

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Diameter قطر الدائرة A chord that passes through thechord center of a circlecircle Example: Back

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Dilation تكبير A transformation that enlarges or reduces a figuretransformation Example: Back

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Distributive Property of Multiplication over Addition توزيع الضرب على الجمع The property which states that multiplying a sum by a number gives the same result as multiplying each addend by the number and then adding the products a(b + c) = a X b + a X c Examples: 3( 4 + 5) = 3 X 4 + 3 X 5 Back

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Domain المجال The set of the first coordinates of the ordered pairs of a relation; see rangordered pairs Example: In the relation {(2,20), (3,30),( 4,40),( 5,50)}. the domain is {2, 3, 4, 5}. Back

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Edge Equation Equilateral triangle Equivalent fractions Evaluate Exponent Exterior angles Face Factorial Formula Function Geometric sequence Greatest common factor (GCF) Helix Horizon line Hypotenuse Identity Property of One Identity Property of Zero Inequality Integers Interior angles Intersecting lines Irrational number Isosceles triangle Even number Flip Fraction Hundredth Hexagon

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The line segment along which twoline segment faces of a polyhedron intersectfacespolyhedron Example: Edge حرف Back

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Equation معادلة A mathematical sentence that uses an equals sign to show that two quantities are equal Examples: 10 = 3 + 7 x = 3 + 7 y = x + 4 Back

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Equilateral triangle مثلث متطابق الاضلاع A triangle with three congruenttrianglecongruent sides and three congruent anglesangle Example: Back

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Equivalent fractions تساوي الكسور FractionsFractions that name the same number Example: Back

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Evaluate اوجد قيمة To find the value Examples: 5 X (5 – 2) =25 X 3 = 75 Back 2

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Even number عدد زوجي A whole number that has 0, 2, 4, 6, or 8 in the ones place Examples: 2,4,6,8,10,12,14,16, … Back

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Exponent أ ُس The number that indicates how many times the base is used as a factorbase Example: 2 = 2 X 2 X 2 = 8 The exponent is 3, indicating that 2 is used as a factor three times. 3 Back

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Exterior angles زوايا خارجية The angles on the outer sides ofangles two lines cut by a transversallinestransversal Example: Angles 1, 2, 7, and 8 are exterior angles. Back

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Face وجه A flat surface of a polyhedronpolyhedron Example: The cube has 6 faces. Back

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The product of all whole numbers, except zero, less than or equal to a number Example: 5! Read as 5 factorial. 5!= 1 X 2 X 3 X 4 X 5 Factorial مضروب Back

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Flip يطوي A move that involves flipping a figure across a line line Example: Back

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Formula صيغة A rule that is expressed using symbols Examples: The area and the circumference of a circle can be computed by using the following formulas: A = r C = d 2 Back

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Fraction كسر A number that names part of a whole or part of a group Example: Back

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Function دالة A relation in which no two ordered pairs have the same x-valueordered pairs Example: Function {(4,8), (3,7), (2,6), (1,5)} Not a Function {(3,8), (2,7), (1,6), (1,5)} is matched with 5 and 6. 1 Back

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Geometric sequence متتابعة هندسية An ordered list of numbers that has a common ratio between consecutive terms. Example: 2,6,18,54, ….. Back

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Greatest common factor (GCF) القاسم المشترك الأكبر The largest common factor of two or more given numbers Example: 18 : 1,2,3,6,9,18 30 : 1,2,3,5,6,10,15,30 the GCF of 18 and 30 is 6. Back

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Helix لولبي A spiral-shaped curve in space that goes around an axis Examples: Back

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Hexagon سداسي A polygon with 6 sides and 6 anglespolygonangles Examples: Back

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Horizon line مستقيم افقي A horizontal line that represents the viewer's eye level Example: Back

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Hundredth واحد من مئة One of one hundred equal parts Example: Back

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Hypotenuse وتر In a right triangle, the sideright triangle opposite the right angle;right angle the longest side in a right triangle Example: Back

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Identity Property of One العنصر المحايد الضربي The property which states that multiplying a number by 1 does not change the number's value Examples: 1 x 6 = 6 a. 1 = a Back

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Identity Property of Zero العنصر المحايد الجمعي The property which states that adding zero to a number does not change the number's value Examples: 0 + 3 = 3 y + 0 = y Back

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Inequality متباينة A mathematical sentence that shows the relationship between quantities that are not equal, using,, or Examples: 6 < 9 3x > 12 y x + 5 Back

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Integers اعداد صحيحة The set of whole numbers and their opposites Example: Back

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Interior angles زوايا داخلية AnglesAngles on the inner sides of two lines cut by a transversallinestransversal Example: Angles 3, 4, 5, and 6 are interior angles. Back

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Intersecting lines مستقيمين متقاطعين Two lines that cross at exactly one pointlinespoint Example: Back

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Irrational number العدد الأصم A number that cannot be expressed as a repeating or terminating decimal Example: Back

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Isosceles triangle مثلث متساوي الساقين A triangle with two congruent sidestrianglecongruent Example: Back

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lateral surface least common denominator (LCD) least common multiple (LCM) line line of symmetry line segment linear equation Midpoint Monomial Obtuse angle Octagon Open figure Opposites Order of operations Ordered pair Origin point Parallel lines Parallelogram Pentagon Percent Perfect square Perimeter Perpendicular lines Pi( ) Place value Plane Point Point of rotation Polygon Polyhedron Prime number Prism Property of Zero Odd number

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lateral surface السطح الجانبي The curved surface of a cylinder or a conecylinder cone Example: Back

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least common denominator (LCD) القاسم المشترك الأصغر The smallest number, other than zero, that is a multiple of two or more denominatorsdenominators Example: Back

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least common multiple (LCM) المضاعف المشترك الأصغر The smallest number, other than zero, that is a multiple of two or more given numbers Example: 6: 6,12,18,24,30,….. 9: 9,18,27,36,45,….. The LCM of 6 and 9 is 18. Back

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line مستقيم A set of points that extends withoutpoints end in opposite directions Example: Back

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line of symmetry محور تناظر A line that divides a figure into two congruent partsline congruent Example: Back

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line segment قطعة مستقيمة A part of a line or ray, consistinglineray of two endpoints and all pointspoints between those endpoints Examples: Back

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linear equation معادلة خطية An equation whose graph isequation a straight lineline Example: The linear equation for the graph below is y = 2x + 1. Back

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Midpoint منتصف قطعة مستقيمة The point that divides a line segment into two congruent line segmentspointline segmentcongruent Example: is the midpoint of AB M Back

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Monomial وحيدة الحد An expression that is a number, a variable, or the product of a number variable and one or more variables Examples: 3x 7 5yx Back

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Obtuse angle زاوية منفرجة An angle whose measure is greater than 90° and less than 180°angle Example Back

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octagon شكل مثمن A polygon with 8 sides and 8 anglespolygonangles Examples: Back

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Odd number عدد فردي A whole number that has 1, 3, 5, 7, or 9 in the ones place Examples: 1,3,5,7,9,11,13,15,17,... Back

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open figure منحنى مفتوح A shape that does not begin and end at the same pointpoint Examples: Back

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Opposites معكوس Numbers that are the same distance from zero, but in opposite directions from zero Example: These pairs of numbers are opposites on the number line. 1 and -1 3 and -3 7 and -7 Back

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Order of operations ترتيب العمليات The correct order in which the operations are done within an expression 1-Do the operations inside parentheses or above and below a fraction bar. 2- Find the value of any numbers in exponent form. 3- Multiply and divide from left to right. 4- Add and subtract from left to right. Example: Add inside parentheses Clear exponent Divide and multiply Subtract 10 ÷ (2 + 8) X 2 – 4 = 10 ÷ 10 X 2 – 4 = 10 ÷ 10 X 8 – 4 = 8 – 4 = 4 = 3 3 Back

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Ordered pair زوج مرتب A pair of numbers used to locate a point on a coordinate planepointcoordinate plane Example: (3,2)represents 3 spaces to the right of zero and 2 spaces up. Back

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Origin point نقطة الأصل The point on the coordinate planepointcoordinate plane where the x-axis and the y-axis intersect, (0,0)x-axisy-axis Example: Back

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Parallel lines مستقيمين متوازيين LinesLines that never cross and are always the same distance apart Example: Back

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Parallelogram متوازي أضلاع A quadrilateral with 2 pairs ofquadrilateral parallel sides, 2 pairs of equal angles, and 2 pairs of equal sides Examples: Back

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Pentagon خماسي A polygon with 5 sides and 5 anglespolygonangles Examples: Back

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Percent نسبة مئوية The ratio of a number to 100; percent means "per hundred". Example: Back

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Perfect square مربع كامل A number that has an integer asinteger its square rootsquare root Example: 16 is a perfect square. Back

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Perimeter محيط The distance around a figure Example: 2cm + 3 cm + 3 cm = 8 cm The perimeter of this figure is 8 centimeters. Back

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Perpendicular lines مستقيمين متعامدين LinesLines that intersect to form 90° anglesangles, or right anglesright angles Example: Read: Line RS is perpendicular to line MN. Back

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Pi( ) باي( ط ) The ratio of the circumference of a circle to the length of its diameter;circumference circle diameter Back

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place value القيمة المكانية The value of a digit as determined by its position in a number Example Back

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Plane مستوى A flat surface that goes on forever in all directions Example Back

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Point نقطة An exact location Example. A point A Back

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Point of rotation نقطة دوران The point about which a rotation is centeredpointrotation Example: Back

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Polygon مضلع A closed plane figure formed by threeplane or more line segmentsline segments Examples: Back

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Polyhedron متعدد السطوح A solid figure with flat faces that are polygonssolid figure faces polygons Examples: Back

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Prime number عدد أولي A whole number greater than 1 and whose only factors are itself and 1 Examples: 17 factors are 17 and 1 29 factors are 29 and 1 Back

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Prism منشور A solid figure whose bases are congruent, parallel polygons andsolid figure bases congruentpolygons whose other faces are parallelogramsparallelograms Examples: rectangular prism triangular prism Back

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Property of Zero خاصية الضرب في الصفر The property which states that the product of 0 and any number is 0 Examples: 8 X 0 = 0 0 X a = 0 Back

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Quadrant Quadrilateral Quadratic function Quarter Quotient Ray Rectangle Rectangular prism Reflection Remainder Radius Regular polygon Relation Rhombus Right angle Right triangle Rotation Rotational symmetry Scalene triangle Sequence Similar figures Simplest form Sine (sin) Slant height Slide Slope Solid figure Solution Sphere Square Square root Straight angle Supplementary angles Surface area Symmetry

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Quadrant ربع المستوى الإحداثي One of the four regions of the coordinate plan Example: Back

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Quadrilateral شكل رباعي A four-sided polygonpolygon Examples: Back

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Quadratic function دالة من الدرجة الثانية A function of the form y = nx is a quadratic function 2 Back

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Quarter ربع 25 Dirham Back

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Quotient خارج القسمة The answer in a division problem Example: The quotient is 7. Back

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Ray شعاع A part of a line that begins at one endpoint and extends forever in onlyline one direction G F Ray GF Example: Back

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Rectangle منطقة مستطيلة A plane figure with 4 side andplane 4 right anglesright angles Example: Back

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Rectangular prism شبه مكعب ” متوازي مستطيلات“ A solid figure in which all six facessolid figure faces are rectanglesrectangles Example: Back

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Reflection انعكاس The result of a figure flipped over a lineflipped line Example: Back

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Remainder باقي القسمة The number that is left over after dividing Example: Back

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Radius نصف القطر A line segment with one endpoint atline segment the center of a circle and the other endpoint on the circlecircle Example: Back

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Regular polygon مضلع منتظم A polygon in which all sides and all angles are congruentpolygon angles Example: Back

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Relation علاقة A set of ordered pairsordered pairs Example: {(5,1),(10,2),(15,3),(20,4),(25,5)} Back

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Rhombus معين A parallelogram whose four sidesparallelogram are congruent and whose opposite angles are congruent angles Example: Back

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Right angle زاوية قائمة An angle that forms a square cornerangle and measures 90° Example: Back

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Right triangle مثلث قائم الزاوية A triangle with exactly one right angletriangleright angle Examples: Back

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Rotation دوران A type of transformation, or movement, that results when a geometric figure is turned about a fixed pointtransformationpoint Example: Back

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Rotational symmetry تناظر حول نقطة A figure has rotational symmetry when it can be rotated less than 360° around a central point, or point of rotation and still match the original figurerotation Example: Back

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Scalene triangle مثلث مختلف الأضلاع A triangle with no congruent sidestriangle Example: Back

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Sequence متسلسلة An ordered list of numbers Example: 5,7,9,11,13,... Back

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Similar figures التشابة Figures that have the same shape but may not have the same size Example: Back

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Simplest form أبسط صورة A fraction is in simplest form when the numeratorfraction and denominator have nodenominator common factors other than 1. Examples: The form of an expression when all like terms are combined Example: 4x + 3x + 2 = 7x + 2 simplest form Back

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جيب الزاوية In a right triangle, the ratio of the length of the side opposite an angle to the length of the hypotenuseright triangleanglehypotenuse Sine (sin) Back

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Slant height ارتفاع الميل The distance from the base of a cone to its vertex, measured along the lateral surfacebaseconevertex lateral surface Example: Back

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Slide انسحاب A movement of a figure to a new position without turning or flipping itflipping Example: Back

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Slope ميل The measure of the steepness of a line; the ratio of vertical change to horizontal changeline Example: Back

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Solid figure مجسم A three-dimensional figure Examples: Sphere cube Cylinder rectangular prism Cone square pyramid Back

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Solution حل The value or values that make an equation an inequality, or system of equations true equationinequality Examples: x – 4 = 16 x + 3 > 9 x – 4 + 4 = 16 + 4 x + 3 – 3 > 9 – 3 x = 20 x > 6 20is the solution. Any number greater than 6 is a solution. Back

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Sphere كرة A solid figure with all points the same distance from the centersolid figure points Example: Back

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Square مربع A rectangle with 4 congruent sidesrectangle Example: -------------------------------------------------- The product of a number and itself Example: 25 is the square of 5 because 5 X 5 = 25. 5 X 5 = 5 Read as 5 squared. 2 Back

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Square root جذر تربيعي One of the two equal factors of a number Example: 6 is the square root of 36 because 6 = 36. 2 Back

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Straight angle زاوية مستقيمة An angle whose measure is 180°angle Example: ABC is a straight angle. Back

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Supplementary angles زاويتين متكاملتين Two angles whose measures haveangles a sum of 180° Example: m ABD + m DBC = 124° + 56° = 180° Back

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Surface area المساحة الكلية The sum of the areas of all the faces, or surfaces, of a solid figureareas facessolid figure Example: Area of face A = 11 X 5 = 55 Area of face B = 21 X 11 = 231 Area of face C = 21 X 5 = 105 Area of face D = 21 X 11 = 231 Area of face E = 21 X 5 = 105 Area of face F = 11 X 5 = 55 55+231+105+231+105+55=782 So, the surface area is 782 in. 2 Back

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Symmetry تناظر When one half of a figure looks like the mirror image of the other half Example : Back

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Tangent (tan) Tenth Transformation Trapezoid Triangle Transversal Trigonometric ratios Variable Venn diagram Vertex Volume X-axis X-coordinate Y-axis Y-coordinate

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Tangent (tan) دالة الظل ( ظا ) In a right triangle, the ratio ofright triangle the length of the side opposite an angle to the length of theangle side adjacent to the angle Back

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Tenth عُشر One of ten equal parts Example: Back

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Transformation تحويل هندسي The movement of a figure, either a translation, rotation, or reflection Examples: Back

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Trapezoid شبه منحرف A quadrilateral with only one pair of parallel sidesquadrilateral Example: Back

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Triangle مثلث A polygon with 3 sides and 3 anglespolygonangles Examples: Back

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Transversal قاطع A line that intersects two or more linesline Example: Line AB is a transversal. Back

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Trigonometric ratios نسب مثلثية Ratios which compare the lengths of the sides of a right triangle; the commonright triangle ratios are tangent, sine, and cosine. Example: Back

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Variable متغير A letter used to represent one or more numbers in an expression, equation, or inequalityequation inequality Examples: 5a 2x = 8 3y + 4 10 a, x, and y are variables. Back

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Venn diagram أشكال فن A diagram that is used to show relationships between sets Example: Back

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Vertex رأس A point where two or more rays meet, where sides of a polygon meet, or where edges of a polyhedron meet; the top point of a cone or pyramid; in a network,pointrayspolygonpolyhedron a point that represents an object Examples: Back

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Volume حجم The measure of the space a solid figure occupiessolid figure Example: The volume of this figure is 24 cubes. Back

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X-axis محور السينات The horizontal axis on the coordinate plane Example: Back

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X-coordinate الإحداثي السيني The first number in an ordered pairordered pair Example: ( 4,6) 4 is the x-coordinate. Back

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Y-axis محور الصادات The vertical axis on the coordinate plane Example: Back

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Y-coordinate الإحداثي الصادي The second number in an ordered pair;ordered pair tells whether to move up or down along the y-axis of the coordinate plane y-axiscoordinate plane Example: (3, 2 ) 2 is the y-coordinate. Back

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Fifth Grade Math Vocabulary.

Fifth Grade Math Vocabulary.

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