Q. 84.0( 10 Votes )

The total surface

Answer :

Total surface area of a cylinder =

Curved surface area of a cylinder =

⇒ 3h=r+h ⇒ 2h=r

Given that total surface area = 462 cm ²

⇒

⇒ r² = 7× 7

So, r = 7 cm , h =3.5cm

Volume of a cylinder =

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