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Understanding Perimeter

Perimeter is the ________________ around a
figure.

You can find perimeter by counting the units
around the edge of a figure.

Perimeter length width

+ = + + length width

4 in.

7 in. 4 cm
5 yd.
l cm

4 yd.

4 m
5 yd. Find the

3 yd. perimeter. 4 m

P = 34 cm P = 24 m
Find the missing

7 cm l0 m
length.
? ?
P = 34 yd. P = 28 cm P = 20 mm

CD-104648 ? ? ?

• ll yd.
Carson-Dellosa 8 cm

© Understanding Perimeter 69