44 cubic centimetres of silver is drawn into a wire 1 mm in diameter . the length of the wire in metres will be :
"sol . let the length of the wire b h . radius = 1 / 2 mm = 1 / 20 cm . then , 22 / 7 * 1 / 20 * 1 / 20 * h = 44 ⇔ = [ 44 * 20 * 20 * 7 / 22 ] = 5600 cm = 56 m . answer a"
divide(44, multiply(power(divide(1, const_2), const_2), const_pi))