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Question 42077: the perimeter of a square mirror is 80cm. what is the area of the mirror (in square cm)
Answer by fractalier(6550)   (Show Source):
You can put this solution on YOUR website! If it is a square, then all the sides must be equal.
If its perimeter is 80 cm, each side must be 20 cm.
Area is found by multiplying a side by itself, so we get
A = s^2 = (20)^2 = 400 sq cm
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