## Romero Group Title Just wondering. Is the surface area of a sphere the circumference of the sphere squared? 2 years ago 2 years ago

1. Romero

I meant the circumference of the regular circle right through the middle. $2 \pi r$

2. pfenn1

I made an error in the explanation. It should have been: No, because the circumference is given by$2\pi r$and the surface area is given by$4πr^2$The circumference squared would be $4\pi^2 r^2$

3. MelanyN17

Area is measured in square units. Volume is measured in cubic units. Surface Area- square units.

4. Romero

How do you derive the surface area of a circle?

5. zzr0ck3r

calculus

6. zzr0ck3r

you can do it with a double or tripple integral

7. zzr0ck3r

and Im sure many other ways