3 years ago

The perimeter of a rectangle is 84 cm. if the length is 25 cm, how wide is the rectangle?

1 answer:

6 0

P = 2(L + W)
P = 84
L = 25
now sub

84 = 2(25 + W)
84 = 50 + 2W
84 - 50 = 2W
34 = 2W
34/2 = W
17 = W <=== the width is 17 cm

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