Question

Volume and surface area of a solid hemisphere are hemispherical equal what is the diameter of the hemisphere ?

Answer 1

4/3πr^3 = 4πr^2
R^3= 3r^2
R = 3r^2/r^2
R = 3
D = 2 × 3
= 6

Answer 2

Answer:

⇒Volume of sphere=surface area of sphere

⇒4/3πr³=4πr²

⇒r=3 units

thus, your ans. is 9