Volume of Cubes and Cuboid

Lesson Objective ,[object Object],[object Object],[object Object],[object Object],[object Object]

What is volume? ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],LENGTH LENGTH LENGTH A Cube has 6 square faces. The length of each square face is equal .

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

Example 1 ,[object Object],[object Object],[object Object],5 cm 5 cm 5 cm Find the volume of the cube.

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

[object Object],[object Object],C U B O I D A cuboid also has 6 faces but NOT all the faces are equal Length Breadth Height

Example 3 ,[object Object],[object Object],[object Object],Find the volume of the cuboid shown below. 10cm 4cm 4cm

[object Object],[object Object],[object Object],[object Object],Example 4 7m 5m 15m

Practice Try these questions yourself. Make sure you solve the question first before proceeding... NEXT

Question 1 ,[object Object],[object Object],[object Object],[object Object],Find the volume of the following solid. 2 2 2 8 2cm 2cm 2cm

Question 2 Volume of cube = x x = x x = cm ³ Find the volume of the cube shown below. 6 6 6 216 6cm

Question 4 ,[object Object],[object Object],11cm 7cm 6cm 11 7 6 462

Volume of Cubes and Cuboid

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