A one dimension quantity − length. Two dimension quantity − length and breadth. When we expand 1 cm from the surface of 2D, it forms 3D. Three dimensional quantity is called as volume.

__UNIT−3__

__MEASUREMENTS__

**Recall:**

__Volume__

A one dimension quantity − length
and it is represented as

Two dimension quantity − length
and breadth. Which can be represented as

The space ocupied here: 1cm x 1cm
= 1 cm^{2}.

Two dimensional quantity is
called as **Area.**

__Definition of
volume__

When we expand 1 cm from the surface of 2D, it
forms 3D.

The space occupied here: 1cm x 1cm x 1cm = 1 cm^{3}.

Three dimensional quantity is called as volume.

So, volume is the space occupied by any 3D object
(cone, cube, cuboid and cylinder).

Tags : Measurements | Term 3 Chapter 3 | 4th Maths , 4th Maths : Term 3 Unit 3 : Measurements

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