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152_G4U22_G4U29˙—» ¿º 2011.3.23 5:27 PM ˘ ` 53 PDF_In 2540DPI 150LPI T
Objective: Understand and find the perimeter of different figures
Find the perimeter of each park.
The distance around a closed figure is called the perimeter.
For any polygon, you can find the perimeter
by adding the side lengths.
The perimeter of a rectangle and a square.
Rectangle Square
l s
ww ss
l s
Since all 4 sides of a square are
Since the opposite sides of a equal, the perimeter is 4 times the
rectangle are equal, the perimeter is side length(s).
2 times the length( l ) plus 2 times
the width(w). Pssss
P 4s
Plwlw
P 2l 2w
22. Perimeter of the Park 53
Objective: Understand and find the perimeter of different figures
Find the perimeter of each park.
The distance around a closed figure is called the perimeter.
For any polygon, you can find the perimeter
by adding the side lengths.
The perimeter of a rectangle and a square.
Rectangle Square
l s
ww ss
l s
Since all 4 sides of a square are
Since the opposite sides of a equal, the perimeter is 4 times the
rectangle are equal, the perimeter is side length(s).
2 times the length( l ) plus 2 times
the width(w). Pssss
P 4s
Plwlw
P 2l 2w
22. Perimeter of the Park 53
