Question

Volume of sphere of a hemisphere are equal then find the diameter of hemisphere

Answer 1

Volume of hemisphere = surface area of hemisphere

SO,
$2 \div 3\pi {r}^{3} \: = 3\pi {r }^{2} \\ 2 \div 3 \: r = 3 \\ r = 9 \div 2$
NOW, diamerer = 9/2×2=9