Geometry
Surface area of a cube
Six identical square faces, each with an area of the side squared.
The Formula
A = 6 x s^2
Six identical square faces, each with an area of the side squared.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| A | Surface area | square metres | Total area of all six faces. |
| s | Side | metres | Length of any edge. |
What Each Symbol Means
Asquare metres
Surface area
Total area of all six faces.
smetres
Side
Length of any edge.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to calculate the volume of a cube page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Calculate The Volume Of A Cube, filed under Math. Every number the guide produces comes from substituting into this one line.