Example:
The radius of the hemisphere is 7 cm. find its total surface area. Solution: Total surface area of hemisphere = 3 * pi * r^{2}
Given that,
r = 7 cm.
= 3 * 22/7 * 7 * 7
= 462 Sq. cm.
Directions: Solve the following problems. Also write at least 5 examples of your own.