11 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 = 11 ⇔ = [ 11 * 20 * 20 * 7 / 22 ] = 1400 cm = 14 m . answer c"
divide(11, multiply(power(divide(1, const_2), const_2), const_pi))