Question

A right circular cylinder of radius r cm and height h cm (h > 2r) just encloses a sphere of diameter ______.

Options

• r cm

• 2r cm

• h cm

• 2h cm

Answer 1

A right circular cylinder of radius r cm and height h cm (h > 2r) just encloses a sphere of diameter 2r cm.

Explanation:

As the sphere just encloses in a cylinder,

The diameter of sphere will be equal to diameter of cylinder.

Diameter of base of cylinder = 2(radius of base) = 2r

So, Dance of sphere = 2r cm