how to find surface area of a cube

To find the surface area of a cube, you just need the length of one side.

Quick Scoop

• A cube has 6 faces, and every face is a square of the same size.
• Area of one square face = side × side = s2s^2s2.
• Total surface area of the cube = area of 1 face × 6.

So the formula is:

Surface area of a cube=6s2\text{Surface area of a cube}=6s^2Surface area of a cube=6s2

where sss is the length of a side. Example:
If each side of the cube is 4 cm:

• Area of one face = 4×4=164\times 4=164×4=16 cm²
• Surface area = 6×16=966\times 16=966×16=96 cm²

So the cube’s surface area is 96 cm². TL;DR: Multiply the side by itself, then multiply by 6: 6s26s^26s2.