Cube
Categories: gcse geometry 3d geometry
A cube is a square box (or block) shape:
The faces of a cube are all square.
Here is a rotating view of a cube:
Here is a video about cubes:
Volume
A cube is a special type of cuboid that has equal width, length and height:
For a cube with sides of length a, the volume is:
The volume is a cubed (this is where the term cubed comes from).
Cube net
We can unfold a cube:
When the cube is completely unfolded w it creates the following net:
This shows that a cube has 6 square faces - the top, bottom, and 4 sides.
Here is an animation of a cube unfolding:
Cube surface area
We can find the surface area of a cube by adding up the areas of all its faces. A square has six faces, and each face has an area of a squared, so the total surface area is:
Cube facts
A cube has eight corners (vertices).
It has twelve edges.
A cube is a Platonic solid (a 3D shape where all the faces are identical regular polygons, squares in this case).
See also
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