Question

If the side of a square is increased by 25%, find the percent increase in its area

Answer 1

Answer: 56.25

Explanation:

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 = (5a4)2

Increased area= 25a216−a2

Increase %=[9a2/16]a2*100 % = 56.25%