Example:
The area of the base of a cone is 78.5 Sq. cm. If its height is 12cm. Find its volume. Solution:
Given that,
Area of the base = pi * r^{2} = 78.5 Sq. cm.
and height (h) = 12cm. Volume of the cone = 1/3 * pi * r^{2} * h.
= 1/3 * 78.5 * 12
= 314 c. cm.
Directions: Solve the following problems. Also write at least 5 examples of your own.