The ratio between the curved surface area and the total surface area of a right circular cylinder is 1 : 2. If the total surface area is 616 cm2, then the volume of the cylinder is


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 =


31
1