Question

Volume and surface area of a solid hemisphere are numerically equal. What is the diameter of hemisphere?

Answer 1

Here's You're Answer

Let the radius of the hemisphere be r units. 
Volume of a hemisphere = Surface area of the hemisphere 
⇒ 2 3 π r 3 = 3 π r 2 ⇒ 2 3 r = 3 ⇒ r = 9 2 ⇒ d =9   units 
Hence, diameter of the hemisphere is equal to 9 units.
Hope it's Help You

Answer 2

Hey mate here is ur answer.......

Let radius be r .
volume of hemisphere = surface area of hemisphere

2 3 r = 3

r = 9 2

d = 9 units.

Hence the diameter is 9.

hope it helps♥