Problem: find the area of the quadrilateral of one of its diagonals is 50 cm and its off sets 15 cm and 5 cm ?
Rationale: "1 / 2 * 50 ( 15 + 5 ) = 500 cm 2 answer : e"
annotated_formula: multiply(multiply(divide(const_1, const_2), add(5, 15)), 50)