**CUBE**

A cuboid, whose length, breadth and height are all equal, is called a cube. A cube has 6 equal and plane surfaces. All the faces of a cube are square in shape. Watch CUBE VIDEO to learn more….

The perimeter of a shape is defined as the distance around the shape.

If each edge of the cube is a, then the surface area of this cube would be 2(a × a + a × a + a × a),

i.e., 6a^{2},

**Surface Area of a Cube = 6a ^{2},** where a is the edge of the cube

When we measure the magnitude of the region of a space, that is, the space occupied by a solid, we do so by counting the number of cubes of edge of unit length that can fit into it exactly. Therefore, the unit of measurement of volume is cubic unit.

Volume of a Cube = edge × edge × edge = a^{3}, where a is the edge of the cube.

**CUBE VIDEO**

Useful for CBSE, ICSE, NCERT & International Students

Grade : 9

Subject : Maths

Lesson : Surface Areas and Volumes

Topic: CUBE VIDEO

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