A cube is a three-dimensional solid object bounded by six faces or sides, with three meeting at each vertex. Thus, a cube is a solid with six congruent square faces. The cube can also be called a regular hexahedron.

In a cube - length, breadth and height are same while in a cuboid these are different.

Parts of a Cube

Face: Also called facets or sides. A cube has 6 faces which are all squares, so each face has four equal sides and all four interior angles are right angles.

Edge: A line segment formed where two edges meet. A cube has 12 edges. Because all faces are squares and congruent to each other, all 12 edges are of the same length.

Vertex: A point formed where three edges meet. A cube has 8 vertices.

Volume of a Cube

If a is the side length of cube, then its volume = a3