Volume

1
Volume
2
Finding the volume of a cube

• If you know one side you can find the volume
• 4 x 4 16cm2
• This is the area of a square side
• 16 x 4 64 cm3
• This is the volume and it is measured in cm3

4cm
3
Finding the Volume of a Cuboid

• A cuboid has a square surface area
• First we find this area
• 5 x 5 25cm2
• To find the volume we multiply the area by the
  length
• 25 x 3 75 cm3

5 cm
3cm
4
Finding the Volume of a Prism

• You find the area of the triangle then multiply
  it by the length
• Area base x height/2
• 3 x 3 9/2
• 4.5 cm2
• The volume is
• 4.5 x 10 45 cm3

3cm
10cm
3cm
5
Finding the Volume of a Cylinder

• Find the area of the circle and then multiply by
  the length
• Area pr2
• Area p x 42
• Area p x 16
• Area 50.3 cm2
• Volume Area x length
• Volume 50.3 x 5
• Volume 251.5 cm3

8cm
5cm
6
Try these

• Find the volume of these objects

12 cm
16cm
8cm
5cm
8cm
20cm
20cm
15cm
12cm
16cm
7
Answers

• 904.8 cm3
• 1,005.3 cm3
• 960 cm3
• 2,400 cm3