Question

If a cylindrical vessel is 12 cm long and its surface area is 540 cm2, set up an

equation to find its radius.

Answer 1

Option (1)

Explanation:

Surface area of a cylindrical vessel is given by the expression,

Surface area =
`2\pi r^(2)+2\pi rh`

=
`2\pi r(r+h)`

Here, r = Radius of the vessel

h = Length of the vessel

By substituting the values of 'h' and surface area in the expression,

2πr(12 + h) = 540

Therefore, Option (1) will be the correct option.