The volume of a hemisphere is 486$\pi$ cm³. Find the radius.
Answer & explanation
Correct answer: option 2
Volume of a hemisphere = $\frac{2}{3} \pi r^3$
⇒ $\frac{2}{3} \pi r^3$ = 486$\pi$
⇒ $r^3$ = 729
⇒ Radius = 9 cm
The volume of a hemisphere is 486$\pi$ cm³. Find the radius.
Correct answer: option 2
Volume of a hemisphere = $\frac{2}{3} \pi r^3$
⇒ $\frac{2}{3} \pi r^3$ = 486$\pi$
⇒ $r^3$ = 729
⇒ Radius = 9 cm