Mental Maths Class 7 Geometry

Asked by RAJANYA MONDAL · The Level field School

A square sheet of paper is folded exactly in half to form a rectangle. The perimeter of this new rectangle is 24 cm. What was the area of the original square sheet of paper?

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Answer: A. 64

Perimeter of the rectangle = 2 (l+b). 2 x (s + s/2) =24 2 x 1.5s =24 3s=24 s=8 Hence, the area of the square is 64.

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