Angeleyes108 one year ago CHECK MY ANSWER: The volume of a sphere is 4,000pi m3. What is the surface area of the sphere to the nearest square meter?

1. Angeleyes108

Choices: A: 2614 B: 3836 C: 1307 D: 794

2. Angeleyes108

3. anonymous

SA (surface Area)=$4\times3.14(pie)\times radius ^{2}$

4. Angeleyes108

All I have is the volume.

5. Angeleyes108

i did it differently

6. anonymous

so then reverse it V= $3/4\times 3.14(pie)\times radis ^{3}$

7. anonymous

you get it?

8. Angeleyes108

I did this: $r^{3} = V \times \frac{ 3 }{ 4 }\pi = 3\times4000\pi \times \frac{ 3 }{ 4 }\pi = 3000cm^3 = 14.42 m$ and then plugged it in with 14.42 as radius

9. Angeleyes108

am i right in doing that?

10. anonymous

i think

11. Angeleyes108

ok thanks :)