Question

Find the total surface area of a hemisphere of radius $10\text{cm}$.

Answer 1

Given radius of hemisphere $=10\text{cm}$

Total surface area hemisphere $=2{\pi }^2+\pi r^2$

TSA of hemisphere $=3\pi r^2$

$\therefore$ TSA $=3\times 3.14\times (10{)}^2=942{\text{cm}}^2$