The ratio between the radius of the base and the height of a cylinder is 2 : 3. If its volume is then its total surface area is

Question

Philoid · Accepted Answer

Let the radius be 2x and height be 3x respectively.

Volume of a cylinder =

⇒ Volume =

So, radius = 2× 3.5 =7 cm and height = 3× 3.5 = 10.5 cm

Total surface area of a cylinder =

⇒ T.S.A.