Davie7663 Davie7663 14-03-2024 Mathematics contestada A hollow cylindrical pipe is made of copper . It is 21 cm long. The outer and inner diameters of the pipe are 10 cm and 6 cm respectively. Find the volume of copper used in making the pipe. A) 1256 cm3 B) 1056 cm3 C) 1024 cm3 D) 966 cm3