Example:
The radius of a hemisphere is 7 cm. Find its surface area. Solution: Surface area of hemisphere = 2 * pi * r^{2}
Given that,
radius (r) = 7 cm.
= 2 * 22/7 * 7 * 7
= 308 Sq. cm.
Directions: Solve the following problems. Also write at least 5 examples of your own.