Perimeter and Area PreAlgebra Farris 2015. I can solve problems involving the perimeter and area of triangles and rectangles.

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Presentation transcript:

Perimeter and Area PreAlgebra Farris 2015

I can solve problems involving the perimeter and area of triangles and rectangles.

A little music?

Let’s Do It 5 cm 7 cm 24 cm Find the Perimeter

Let’s Do It 8 in 15 in 9 in 32 in Find the Perimeter

Let’s Do It 13 in 20 in 260 in 2 Find the Area

A = ½ bh

Let’s Do It The base of a triangle is 12 inches, and its height is 5 ¼ inches. Find the area in 2

Find the Missing Side Perimeter = 78 in x 8 in 40 in 30 in

Find the Missing Side x 43 in Perimeter = 118 in 16 in

Find the Missing Side Area = 120 in 2 10 in x 24 in Set it up bh = A 2 10x = 120 2

Find the Missing Side 15 in x Area = 300 in 2 Set it up bh = A 15x = in