Cube facts for kids

A cube has 6 sides of equal length and width

A magnified crystal of salt

A cube is a block with all right angles and whose height, width and depth are all the same.

A cube is one of the simplest mathematical shapes in space. Something that is shaped like a cube is sometimes referred to as cubic. Surface area of cube=6d^2 Lateral Surface area of cube=4d^2 Volume of cube=d^3

Relative 2-dimensional shape

The basic difference between a cube and a square is, a cube is a 3D figure (having 3 dimensions) i.e. length, breadth and height while a square has only 2 dimensions i.e. length and breadth. The 2-dimensional (2D) shape (like a circle, square, triangle, etc.) that a cube is made of is squares. The sides (faces) of a cube are squares. The edges are straight lines. The corners (vertices) are at right angles. A cube has 8 corners, 12 edges and 6 faces, as in the most usual kind of dice.

Volume

• The volume of a cube is the length of any one of the edges (they are all the same length so it does not matter which edge is used) cubed.
• This means you multiply the number by itself, and then by itself again.
• If the edge is named 'd' (See Diagram), the equation would be this: Volume=d×d×d (or Volume=d³).

Cube shaped figures

• Dice
• Boxes

Images for kids

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  Net of a cube

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  Octahedral symmetry tree

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  These familiar six-sided dice are cube-shaped.

See also

In Spanish: Cubo para niños