the length of rectangle is thrice its breadth and its perimeter is 80 m , find the area of the rectangle ?
"2 ( 3 x + x ) = 80 l = 36 b = 10 lb = 36 * 10 = 360 a"
multiply(multiply(divide(80, add(multiply(const_3, const_2), multiply(const_1, const_2))), const_3), divide(80, add(multiply(const_3, const_2), multiply(const_1, const_2))))