Volume

VOLUME OF

A CUBE AND CUBOID

​Lesson Objective

​At the end of the lesson, you will be able to:

​1. Find the volume of a cube

​2. Find the volume of cuboid

​What is a volume?

Volume is the amount of space inside a 3D object​

​VOLUME OF A CUBE

• ​To find the volume of a cube, you have to multiply the sides.

• ​S x S x S = volume

• ​Units is cubic centimetre (cm³ )

Find the volume of the cube below?

= S x S x S

​= 3 x 3 x 3

= 27 cm³

Multiple Choice

Find the volume of the cube shown

• 64cm³

• 24cm³

• 512cm³

• 16cm³

Find the volume of the cubes below?

​volume = 1 x 1 x 1

= 1cm³

​= 5 cubes x 1cm³

​= 5cm³

These solids are made of identical cube of side 2cm. Find the volume?

​volume of 1 cube

= 2 x 2 x 2

= 8cm³

​volume of whole solid

= 7 cubes x 8cm³

​= 56cm³

Multiple Choice

The figure is made up of identical cubes of sides 2cm. What is the total volume of the figure?

(PSR P2 2016)

• 8cm³

• 12cm³

• 48cm³

• 80cm³

​VOLUME OF A CUBOID

• ​To find the volume of a cuboid, you have to multiply length, height and width.

• ​L x W x H = volume

• ​Units is cubic centimetre (cm³ )

Find the volume of the cuboid below?

​= L x W x H

​= 8 x 5 x 4

= 160 cm³

Multiple Choice

Find the volume of the cuboid shown

• 14cm³

• 54cm³

• 36cm³

• 45cm³

Poll

Do you find the lesson easy or hard?

• EASY

• HARD