Archive for May, 2011

What is the surface area formula for an octahedron?

To simplify this, couldn’t I just say that it is the area of one of the triangular faces X 8? I also need to know if this would work for a dodecahedron and an icosahedron. Thanks!!
Yes. For each of them, all faces are identical (if it’s regular, which it sounds like it is), so [...]

What is the Surface Area formula of a cube?

-i tried looking for it online but it only gives me the volume and the area formula for a square.
The surface area of a cube is S = 6s^2.
You can see this because the surface area is just the area of all of the faces. Since each of the six faces on the cube [...]

what are the formulas for surface area and volume of a cube?

the length, width, and height is 8.
surface area = 6*length^2
volume = length^3