Question

If a sphere has a surface area of 324pi cm^2, find the volume of the sphere

Answer 1

Use this: A=4 pi r^2 to find r
Then use this: V = 4/3 pi r^3 to find the volume

Answer 2

Can you plug it in? I've literally been trying that formula all night and its not turning out

Answer 3

324pi=4*3.14 r^2

Answer 4

Leave pi as pi. Don't substitute 3.14. Divide both sides by 4

Answer 5

So 324 divide by 4?

Answer 6

\[r=\frac{9}{\sqrt{\pi}}\]

Answer 7

Yes/ If you divide both sides by 4 you will have to divide 324 by 4 since it is the left side.

Answer 8

I got 81

Answer 9

Does that seem right