Page 167 - Maths Class 05

3 cm
3 cm

Finding the volume of a solid

One layer = 2 × 3 = 6 cubes

Three layers = 6 × 3 = 18 cubes
.
. . Volume of this solid = 18 cu cm

Measurements in Centimetres Count Volume

Breadth
Length Height Numbers of length × breadth
(Unit Cubes
(Rows) (Layers) 1 cm cubes × height
in each row)

4 cm × 5 cm

4 5 4 80 × 4 cm
= 80 cm 3

5 cm × 3 cm
5 3 4 60 × 4 cm

= 60 cm 3

6 cm × 3 cm
6 3 4 72 × 4 cm
= 72 cm 3

From the above table you can conclude that

Volume of a couboid = length × breadth × height

If all the edges of a cuboid are equal, then it is called a cube .

So, Volume of cube = side × side × side = (side) 3

Calculating Volume

While finding the volume of a cube or a cuboid, you will first count
the number of cubes in a layer and then find the number of layers.

Cubes per layer × Number of layer = Volume

Length × Breadth × Height = Volume
Cuboid

Mathematics-5 167