Question 82
A right circular cylinderis circumscribing a hemisphere such that their bases are common. The ratio of their volumes is
Solution
Volume of cylinder = $$ \pi r^2 h $$
here h = r bases are common
Volume of hemisphere = $$ \frac{2}{3} \pi r^3 $$
Ratio , $$ \frac{2}{3} \pi r^3 $$ : $$ \pi r^2 r $$
= 2 : 3
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