If each side of a square is increased by 25%, find the percentage change in its area?
let each side of the square be a , then area = a2
As given that The side is increased by 25%, then
New side = 125a/100 = 5a/4
New area = 5a42
Increased area= 25a216-a2
Increase %=9a2/16a2*100 % = 56.25%
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