Question

what is the formula for volume of a cylinder?

1. $v = \pi r^2$
2. $v = \pi r^2 h$
3. $v = \frac{1}{3}\pi r^2 h$
4. $v = \frac{1}{3}lwh$

Explanation:

The volume of a cylinder is calculated by multiplying the area of its circular base (which is $\pi r^2$, where $r$ is the radius) by its height $h$. The other options represent: the area of a circle (first option), the volume of a cone (third option), and the volume of a pyramid (fourth option).

Answer:

1. $V = \pi r^2 h$