a rectangular room 14 m long , 12 m broad is surrounded by a varandah , 3 m wide . find the area of the varandah ?
area of varandah = ( l + b + 2 p ) 2 p = ( 14 + 12 + 6 ) 6 = 180 m ( power ) 2 answer is b .
multiply(add(14, multiply(const_2, divide(3, const_10))), add(12, multiply(const_2, divide(3, const_10))))