Question

Question 3
Find the total surface area of a hemisphere of radius 10 cm.
$[Use\pi =3.14]$

Answer 1

Radius (r) of hemisphere = 10 cm

Total surface area of hemisphere = CSA of hemisphere + Area of circular base of Hemisphere.
$=2\pi r^2+\pi r^2=3\pi r^2=[3\times 3.14\times (10{)}^2]c{m}^2=942c{m}^2$