The radius of a right circular cylinder is five times of its height. If the height of the cylinder is 3.5 cm, then what is the volume of cylinder?
Answer & explanation
Correct answer: option 1
We know that,
Volume of a cylinder = πr2h
The radius of a right circular cylinder = five times its height.
The height of the cylinder = 3.5 cm
The radius of the cylinder = 3.5 × 5 = 17.5
Now,
Volume = π × 17.52 × 3.5
= \(\frac{22}{7}\) × 17.5 × 17.5 × 3.5 = 22 × 2.5 × 17.5 × 3.5 = 3368.75