The side of a square is increased by 20%. The percentage change in its area is

0.2 44% 36% None of these

44%

Let the side of square be 10, area = 100  After increase in the side by 20%, side = 12, area = 144 Change in area = 44 Percentage change in area = \(\frac{44 }{ 100}\) x 100 = 44%