Q1 of 27 Page 79

When each side of a square was reduced by 2 metres, the area became 49 square metres. What was the length of a side of the original square?

Given area of reduced square = 49 square metres


We know that area of a square = a2, where a is the side of square.


⇒ √49 = 7 (Side of reduced square)


Given, the original square’s side was reduced by 2 metres.


⇒ 7 + 2 = 9 metres


∴ The length of a side of the original square is 9 metres.


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