# Surface Area of a Cube Formula

Surface Area of a cube is the total area of the outside surfaces of the cube. It is measured in terms of square unit. A cube has 6 identical square faces and hence it is also called as hexahedron. Each faces have 4 edges and totally there are 12 edges in a cube.

The **Surface Area of a Cube Formula** is,

\[\large Surface\;area\;of\;Cube=6a^{2}\]

Where,

a is the side length of the cube.

### Solved Examples

**Question 1:**What is the surface area of a cube of side 5 cm ?

**Solution:**

Given,

Side of the cube = a = 5 cm

Side of the cube = a = 5 cm

Surface Area of a Cube

= 6a^{2}

= 6 x 5^{2} cm^{2}

= 6 x 25 cm^{2}

= 150 cm^{2}

**Question 2:**What is the surface area of a cube of side 17 cm ?

**Solution:**

Given,

Side of the cube = a = 17 cm

Side of the cube = a = 17 cm

Surface Area of a Cube

= 6a^{2}

= 6 x 17^{2} cm^{2}

= 6 x 289 cm^{2}

= 1734 cm^{2}