If each side of a square is increased by 25%, find the percentage change in its area? Choose the correct choice from the following answers.
A) 54%
B) 56%
C) 56.25%
D) 58.25%
E) 59%
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>C</result>
If each side of a square is increased by 25%, find the percentage change in its area?