the side of a square is increased by 15 % then how much % does its area increases ?
a = 100 a 2 = 10000 a = 115 a 2 = 13225 - - - - - - - - - - - - - - - - 10000 - - - - - - - - - 3225 100 - - - - - - - ? = > 32.25 % answer : d
divide(multiply(subtract(square_area(add(const_100, 15)), square_area(const_100)), const_100), square_area(const_100))