Problem: difference between the length & breadth of a rectangle is 10 m . if its perimeter is 206 m , then its area is ?
Rationale: solving the two equations , we get : l = 30 and b = 40 . area = ( l x b ) = ( 30 x 40 ) m 2 = 1200 m ^ 2 d
annotated_formula: multiply(multiply(10, const_4), multiply(10, const_3))