The radius of a right circular cylinder is thrice of its height. If the height of the cylinder is 2.1 cm, then what is the volume of cylinder?

261.95 cm³

We know that,

Volume of a cylinder = πR²H

We have,

The radius of a right circular cylinder = thrice of its height.

Height of the cylinder = 2.1 cm.

So, according to the question,

Radius = 3 × 2.1 = 6.3 cm

The volume of the cylinder = \(\frac{22}{7}\) × 6.3² × 2.1 = 261.95 cm³