If each side of a square is increased by 25%, find the percentage change in its area?
Choose one:
A) 56.29%  B) 56.25%  C) 56.95%  D) 53.25%  E) 36.25%
let each side of the square be a , then area = a x a   New side = 125a / 100 = 5a / 4   New area =(5a x 5a) / (4 x 4) = (25a²/16)   increased area== (25a²/16) - a²   Increase %= [(9a²/16 ) x (1/a² ) x 100]% = 56.25%   Answer: 56.25%
<result>B</result>
If each side of a square is increased by 25%, find the percentage change in its area?