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

The diameter of hemisphere is 9

Step-by-step explanation:

∵ the volume of the sphere is

∴ The volume of the hemisphere is

∵ The surface area of the hemisphere is

∴ The surface area of the hemisphere

∵ The volume of the hemisphere = the surface area of it

∴ ⇒divide both sides by πr²

∴

∴ r =9/2

∴ The diameter of the hemisphere is 9

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

-2

7 - 9 = -2

reversed:

-2 + 9 = 7