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**Beat the Computer! Geometry Vocabulary for Unit 3**

Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

Directions: A slide will appear with a term Say the definition aloud before the computer can answer (5 sec.) You will hear a sound when the slide changes Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

transversal t l m 1 2 7 4 5 8 3 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a line that intersects two coplanar lines at two distinct points**

transversal: a line that intersects two coplanar lines at two distinct points t l m 1 2 7 4 5 8 3 6 Line t is the transversal for lines l and m. Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**alternate interior angles**

m 1 2 7 4 5 8 3 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**alternate interior angles: **

nonadjacent interior angles that lie on opposite sides of the transversal t l m 1 2 7 4 5 8 3 6 Alternate interior ’s: 3 & 5 4 & 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**same-side interior angles**

1 2 7 4 5 8 3 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**same-side interior angles: **

interior angles that lie on the same side of the transversal Same-side interior ’s: 3 & 6 4 & 5 t l m 1 2 7 4 5 8 3 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

corresponding angles t l m 1 2 7 4 5 8 3 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**corresponding angles: **

angles that lie on the same side of the transversal and are in corresponding positions Corresponding ’s: 1 & 5 2 & 6 3 & 7 4 & 8 t l m 1 2 7 4 5 8 3 6 Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

two-column proof Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

two-column proof: a convincing argument that uses deductive reasoning in which the statements and reasons are aligned in columns Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

flow proof Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

flow proof: a convincing argument that uses deductive reasoning in which arrows show the logical connections between the statements Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

equiangular triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**equiangular triangle: a triangle that has three congruent angles**

Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

acute triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a triangle that has three acute angles**

acute triangle: a triangle that has three acute angles Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

right triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a triangle that has one right angle**

right triangle: a triangle that has one right angle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

obtuse triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a triangle that has one obtuse angle**

obtuse triangle: a triangle that has one obtuse angle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

equilateral triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**equilateral triangle: a triangle that has three congruent sides**

Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

isosceles triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a triangle that has at least two sides congruent**

isosceles triangle: a triangle that has at least two sides congruent Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

scalene triangle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a triangle that has no sides congruent**

scalene triangle: a triangle that has no sides congruent Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**exterior angle of a polygon**

Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**an angle formed by a side and an extension of an adjacent side**

exterior angle of a polygon: an angle formed by a side and an extension of an adjacent side Exterior angle Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**remote interior angles of a triangle**

Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**remote interior angles of a triangle:**

the two nonadjacent interior angles corresponding to each exterior angle Exterior angle Remote interior angles Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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polygon: a closed plane figure with at least three sides that are segments No! Yes! No! Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

convex polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon that has no diagonal with points outside the polygon**

convex polygon: a polygon that has no diagonal with points outside the polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

concave polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

concave polygon: a polygon that has at least one diagonal with points outside the polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

quadrilateral Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with four sides**

quadrilateral: a polygon with four sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

pentagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with five sides**

pentagon: a polygon with five sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

hexagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with six sides**

hexagon: a polygon with six sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

heptagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with seven sides**

heptagon: a polygon with seven sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

octagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with eight sides**

octagon: a polygon with eight sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

nonagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with nine sides**

nonagon: a polygon with nine sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

decagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with ten sides**

decagon: a polygon with ten sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

dodecagon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with twelve sides**

dodecagon: a polygon with twelve sides Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

equilateral polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with all sides congruent**

equilateral polygon: a polygon with all sides congruent Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

equiangular polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon with all angles congruent**

equiangular polygon: a polygon with all angles congruent Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

regular polygon Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a polygon that is both equilateral and equiangular**

regular polygon: a polygon that is both equilateral and equiangular Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

slope-intercept form Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**slope-intercept form: a linear equation in the form of**

y = mx + b Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

standard form Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a linear equation in the form of**

standard form: a linear equation in the form of Ax + By = C Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**Chris Giovanello, LBUSD Math Curriculum Office, 2004**

point-slope form Chris Giovanello, LBUSD Math Curriculum Office, 2004

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**a linear equation in the form of**

point-slope form: a linear equation in the form of y - y1 = m(x - x1) Chris Giovanello, LBUSD Math Curriculum Office, 2004

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