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1.7 Introduction to Perimeter, Circumference, & Area p. 51
Rectangle Perimeter P=2 l +2 w Area A= lw l (length) W (width)
Square Perimeter P=4s Area A=s 2 S (side)
Triangle Perimeter P=a+b+c Area A= ½ bh b (base) h (height) ac
Circle Diameter d=2r Circumference C=2πr Area A=πr 2 diameter r a d i u s ** Always use the π button on the calculator; even when the directions say to use 3.14.
Example: Find the perim. & area of the figure. P=2 l +2 w P=2(5in)+2(3in) P=10in+6in P=16in A= lw A=(5in)(3in) A=15in 2 3 in 5 in
Ex: Find the perim. & area of the figure. P=4s P=4(20m) P=80m A=s 2 A=(20m) 2 A=400m 2 20 m
Ex: Find the perim. & area of the figure. P=a+b+c P=5ft+7ft+6ft P=18 ft A= ½ bh A= ½ (7ft)(4ft) A= ½ (28ft 2 ) A= 14ft 2 7 ft 5 ft 4 ft 6 ft
Ex: Find the circumference & area of the circle. C=2πr C=2π(5in) C=10π in C31.4 in A=πr 2 A=π(5in) 2 A=25π in 2 A78.5 in 2 1 0 i n
1.6 Angle Relationships 9/10/12 Pairs of Angles –Adjacent Angles –Vertical Angles –Linear Pair –Complementary –Supplementary CCSS: G-CO1 Know precise definitions.
1.7 Introduction to Perimeter, Circumference, & Area Geometry.
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Perimeter, Circumference, and Area Learning Target: I can find the perimeter, circumference, and area of basic shapes.
20) 108° 21) 80° 22) 70° 23) 123° 24) 38° 25) 167° 26) 10° 27) 154° 28) 105 = 2x – 11; x = 58 29) 6x x = 180; x = 23.
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Geometry Perimeter The perimeter is the distance around a two-dimensional object. The perimeter of a polygon can always be calculated by adding all.
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Perimeter Rectangles, Squares, and Triangles Perimeter Measures the distance around the edge of any flat object. To find the perimeter of any figure,
The circumference of the circle is 50 feet. The area of the shaded region = ________ example 1 :
Perimeter and Area Formulas. Perimeter is the distance around an object. It is easily the simplest formula. Simply add up all the sides of the shape,
Geometry 1.6 Perimeter and Area. Perimeter Is the distance around a figure It is the sum of the lengths of the sides of the figure =side 1 +side 2 +side.
Volume of prisms Objective: Be able to work out the volume of a prism.
20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt 20 pt 30 pt 40 pt 50 pt 10 pt.
7.3 Area of Complex Figures. What are the formulas for the areas of a parallelogram, triangle, trapezoid, and circle? What is the circumference formula.
Circles Yes I know we did this yesterday. Circumference Posh name for the perimeter of a circle Measured in normal units of length cm etc. But how do.
Section 1.7. Recall that perimeter is the distance around a figure, circumference is the distance around a circle, and area is the amount of surface covered.
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Area of a Square P = 2L + 2W Perimeter of a Square A= s 2 Perimeter of a Rectangle P = 4s Area of a Rectangle A= LW or Bh.
Our project is over finding area and perimeter of triangles circles rectangle and trapezoid.
Challenge: 1.6 Find the values of x and y in the diagram. Hint: System of linear equations (8y – 2x) + (9y – 2x) + (6x + y) = 180 8y – 2x = 2x – y 18y.
9.4 – Perimeter, Area, and Circumference Perimeter of a Polygon The perimeter of any polygon is the sum of the measures of the line segments that form.
Length= 10ft Width= 15ft Area= L*W Area= Shape= Rectangle Floor= Wood Floor= 150*5= $750.
Perimeter, Circumference, and Area 1.7 This presentation was created following the Fair Use Guidelines for Educational Multimedia. Certain materials are.
You will learn to find the perimeter and area for different shapes and the circumference of circles. s s Perimeter = 4s or s+s+s+s Area = s 2 l w P =
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Chapter 9 Geometry © 2008 Pearson Addison-Wesley. All rights reserved.
1-5: USING FORMULAS IN GEOMETRY. PERIMETER & AREA RectangleSquareTriangle P = 2l + 2w or 2(l + w) A = lw P = 4s A = s 2 P = a + b + c A = ½ bh.
Lesson 12-3, 4, 13-1 Cylinders & Prisms. Objectives Find lateral areas of cylinders Find surface areas of cylinders Find volume of cylinders Find lateral.
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