The length of a rectangle is 10 cm and its perimeter is equal to that of a square of
side 9 cm. Find the area of the rectangle.
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80cm sq
First multiply the side of the square by 2 which is = 18 and then subtract 10 from it and you will get the length of the rectangle. Then apply the formula of how to take out the area of a rectangle and you will get the answer.
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