Q. 235.0( 5 Votes )

# 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 cm^{2}. Find its volume.

Answer :

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}

⇒

⇒ r^{2} = 7× 7

So, r = h = 7 cm

Volume of a cylinder =

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