Question

If the total surface area of a solid hemisphere is 462 cm2 , find its volume.[Take π=22/7]

 

Answer 1

Solution:

Given total surface area of hemisphere=462cm²

${\displaystyle 2\pi r^2=462}$

r=8.574 cm

Volume of a hemisphere ${\displaystyle =\frac{2}{3}\pi r^3}$

${\displaystyle =\frac{2}{3}\times \frac{22}{7}\times {8.574}^3}$

${\displaystyle =1320.63c{m}^3}$