The perimeter 8

The perimeter of a rectangle is 40cm. If its width measures 5cm, what is its area?

Correct answer:

A =  75 cm2

Step-by-step explanation:

o=40 cm a=5 cm  o = 2a+2b  b=o/2a=40/25=15 cm  A=a b=5 15=75 cm2

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