Category A
Why do we multiply three numbers?
We multiply three numbers (length × width × height) to calculate the volume of a cuboid
What is the formula to find the volume of a cuboid?
Volume = length × width × height
After Video
What is the volume of a rectangular prism that has length 3 feet, width 2 feet and height 5 feet?
The volume is 30 cubic feet. I multiplied 3×2×5.
What is width?
A measure of how wide an object is.
What does volume mean in real life?
Volume in real life refers to the amount of space inside a 3D object.
Find the volume of a cuboid with length 5 cm, width 3 cm, and height 4 cm.
5 × 3 × 4 = 60 cm³
What is the Volume?
The amount of space inside a 3-dimensional object.
What is the length?
A measure of how long an object is.
A cuboid has dimensions 5 cm × 2 cm × 3 cm. What’s the volume?
30 cm³
wooden cuboid has a length of 10 cm, width 6 cm, and height 2 cm. How much wood (in cm³) is used to make it?
10 × 6 × 2 = 120 cm³
Rectangular Prism is.......
A 3-dimensional solid shape that has 6 faces.
What is the height?
A measure of how tall an object is.
A cuboid has dimensions 7 cm × 3 cm × 2 cm. What is its volume?
7 × 3 × 2 = 42 cm³
Which has a greater volume: a cuboid 8 × 2 × 5 or one 4 × 4 × 5?
8 × 2 × 5 = 80 cm³
4 × 4 × 5 = 80 cm³
Both have the same volume (80 cm³)
Cubic unit......
Used to measure, a cube that is 1 unit long, 1 unit wide, and 1 unit tall.
What did you learn today?
How to measure the volume of a cuboid/rectangular prism.
A shoebox is 30 cm long, 20 cm wide, and 10 cm tall. What is its volume?
30 × 20 × 10 = 6,000 cm³
A student says 2 × 3 × 4 = 18, so the volume is 18 cm³.
What mistake did they make?
They made a multiplication error.
2 × 3 = 6, and 6 × 4 = 24 cm³, not 18.
Square unit.....
Used to measure, a square that is 1 unit long and 1 unit wide.