Page 55 - NUMINO TB_4B

150_G4U21_G4U28˙—» ¿º 2011.3.23 5:10 PM ˘ ` 44 PDF_In 2540DPI 150LPI T

Activity 2 Finding the Area of a Figure

Learn how to find the area of a figure using a formula.

Multiply the length by the width to find the area. 6 cm

Area of rectangle length width

Al w 5 cm
5 cm
6 cm 5 cm

30 sq centimeters

30 cm2 2 2 22 3 3 32

cm cm cm2

Since all 4 sides of a square are equal, multiply the 5 cm
length by itself to find the area.

Area of square length width
A
lw
5 cm 5 cm
25 sq centimeters
25 cm2

1 . Find the area of each figure. b. 7 cm
7 cm
a. 10 ft Al w
ft square feet(ft2)
5 ft ft

c. 4 m

d. 5 in.

7m

5 in. e. 8 yd

2 yd

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