Surface Areas and Volumes – Notes

Cube and Cuboid

A solid figure bonded by six rectangular plane faces is called a cuboid.

It is also known as rectangular prism

A cuboid in which length, breadth and height are equal is called a cube.

Surface Area or Total Surface Area of a cuboid = 2(ɭb + bh + ɭh)

Surface Area or Total Surface Area of a cube = 6a²

Lateral Surface Area or Area of four walls of a cuboid = 2(ɭ + b)h

Lateral surface area of a cube = 4a²

Volume of cboid = ɭbh

Volume of a cube = a³