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  • 1.  
  • 2. Lesson Objective
    • In this lesson, you will learn and understand:
    • The concept of volume
    • The Difference between Cube and Cuboid
    • Finding the Volume of Cube
    • and Cuboid
  • 3. What is volume?
    • The volume of a solid, cube or cuboid refers to the capacity of the
    • solid or the amount of space
    • inside the solid.
  • 4.
    • Volume of CUBE = LENGTH X LENGTH X LENGTH
    • = X X
    • = ³
    LENGTH LENGTH LENGTH A Cube has 6 square faces. The length of each square face is equal .
  • 5. The solid shown below is made up of twenty-seven 1-cm cubes. Find the volume of the solid. Method 1 Volume of one 1-cm cube = 1 x 1 x 1 cm ³ = 1 cm ³ Volume of twenty-seven 1 cm cubes = 27 x 1 cm ³ = 27 cm³ The volume of the cube is 27 cm³ Method 2 Volume of cube = 3 x 3 x 3 cm ³ = 27 cm ³ The volume of the cube is 27 cm³ 3 cm 3 cm 3 cm
  • 6. Example 1
    • Volume of cube = x x
    • = 5 x 5 x 5
    • = 125cm ³
    5 cm 5 cm 5 cm Find the volume of the cube.
  • 7. Example 2 Volume of present = x x = 10 x 10 x 10 = 125cm ³ The present shown on the left is a present given to class 1T1 for winning the Cheer Competition. Find the volume of the present if it is a cube. 10 cm
  • 8.
    • Volume of CUBOID = LENGTH X BREADTH X HEIGHT
    • = X X
    C U B O I D A cuboid also has 6 faces but NOT all the faces are equal Length Breadth Height
  • 9. Example 3
    • Volume of cuboid = x x
    • = 10 x 4 x 4
    • = 160cm ³
    Find the volume of the cuboid shown below. 10cm 4cm 4cm
  • 10.
    • Volume of cuboid
    • = x x
    • = 7 x 5 x 15
    • = 525m ³
    Example 4 7m 5m 15m
  • 11. Practice Try these questions yourself. Make sure you solve the question first before proceeding... NEXT
  • 12. Question 1
    • Volume of cube
    • = x x
    • = x x
    • = cm ³
    Find the volume of the following solid. 2 2 2 8 2cm 2cm 2cm
  • 13. Question 2 Volume of cube = x x = x x = cm ³ Find the volume of the cube shown below. 6 6 6 216 6cm
  • 14. Question 3 4 3 7 84 7m 4m 3m
  • 15. Question 4
    • Volume of cuboid = x x
    • = m ³
    11cm 7cm 6cm 11 7 6 462