Example:
The diameter of a cone is 14cm. Find its area of base of cone. Solution: Area of base of cone = pi * r^{2}
Given that,
The diameter of cone is 14cm.
radius (r) = d/2 = 14/7 = 7cm.
Area of base of cone = pi * r^{2}
= 22/7 * 7 * 7
= 154 Sq. cm.
Directions: Solve the following problems. Also write at least 5 examples of your own.