(12) 3d shape and space ( pg 158 - 162 ).doc

WAJA MATHEMATICS YEAR 5 JPN PERAK

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Calculate the volume of composite 3 –D shapes

Solve problems involving volume of composite 3- D shapes

WAJA MATHEMATICS YEAR 5 JPN PERAK Calculate the volume of a cube and a cuboid

Example 1 :

Example 2 :


Step 1 : Calculate the volume of the cubeCube : Length = 3 cm Breadth = 3 cm Height = 3 cm

Step 2 :

Volume : L X B X H = 3 cm x 3 cm x 3 cm = 27 cm³

Write the answer in __ cm³/ m³

Write the answer in __ cm³/ m³

Step 1 : Calculate the volume of the cuboid

Cuboid = Length x breadth x height = 30 cm x 10 cm x 7 cm = 2100 cm ³

3 cm

3 cm

3 cmRemember to

use the formula

Remember touse the formula

7 cm

10 cm

30 cm




Exercises 1:

Exercise 2


Calculate the volume of the cube

Length = _______ cmBreadth = _______ cmHeight = _______ cm

Volume = ______ cm x _____ cm x ______ cm

= 125 cm ³

Calculate the volume of the cuboid

Length = _______ cmBreadth = _______ cmHeight = _______ cm

Volume = ______ cm x _____ cm x ______ cm

= _______ cm ³

5 cm

5 cm

Calculate the volume of the cube

5 cm

5 cm

2 cm 8 cm


Exercise 3


Step 1 : Determine the length , breadth and height of each shapes

Cubiod A : Cuboid B Length = 3 cm Length = 11 cmBreadth = 3 cm Breadth = 3 cmHeight = 8 cm Height = 5 cm

Volume A = ______ cm x _____ cm x ______ cm

_______ cm ³

Volume B = ______ cm x _____ cm x ______ cm

_______ cm ³

Total volume of A + B = ______ cm ³

5 cm

3cm

Calculate the volume of composite 3-D shapes

8 cm

14 cm

3 cm

A

B


Calculate the volume of a cube , a cuboid and composite shapes.

45

6 7

8 9


4 cm

4 cm 4 cm

6 cm

4 cm

4 cm

6 cm

4 cm 4 cm 10 cm

5 cm

6 cm 2 cm

6 cm

7 cm

8 cm

4 cm

3 cm

8cm

2 cm

20 cm

6 cm

8 cm

8cm

12 cm

2 cm

(12) 3d shape and space ( pg 158 - 162 ).doc

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