The ratio of the curved surface area and the total surface area of a circular cylinder is 1:2 and the total surface area is 616 cm2. Find its volume.

Total surface area of a cylinder =


Curved surface area of a cylinder =



2h=r + h


h=r


Given that total surface area = 616 cm 2



r2 = 7× 7


So, r = h = 7 cm


Volume of a cylinder =



23