the edges of cuboid are 4 cm ; 5 cm and 6 cm . find its surface area ?
2 ( 4 * 5 + 5 * 6 + 4 * 6 ) = 148 answer : b
add(multiply(multiply(const_2, const_4), 5), add(multiply(multiply(const_2, 6), const_4), multiply(6, multiply(const_2, 5))))