How Do You Calculate the Potential Energy in a Charge Configuration?

[SammyS]

But area and volume only works for easy ones like squares right?

No. If a sphere has a surface area of 7 cm², and a second sphere has a radius twice radius of the first sphere, then the second sphere has an area of 2² times the area of the first sphere, which gives 28 cm².

As long as you scale length, width, and height all the same, the shape of the object doesn't matter .

 

[flyingpig]

This is getting off topic but how can spheres have surface areas? Is it just a circle?

 

[SammyS]

This is getting off topic but how can spheres have surface areas? Is it just a circle?

You're kidding! Think about it.
A sphere is a three dimensional object. A circle is a two dimensional object. Both have a similar definitions.