Calculating Volume of Prisms

This video tutorial teaches how to determine the volume of a prism by analyzing its layers and counting cubes. It begins with a review of cubic units, explaining that they can be of any size and are used to measure the volume of 3D objects. The tutorial then demonstrates how to calculate the volume of a rectangular prism by counting the number of cubic units in each layer. It shows that regardless of the orientation of the prism, the volume remains the same. The lesson concludes by reinforcing the concept of volume calculation through layer analysis.

What is a cubic unit?

• A unit with three different dimensions

• A unit with edge lengths of 1 unit each

• A unit that changes size based on the object

• A unit used only for measuring liquids

Which of the following objects can have its volume measured in cubic units?

• A flat piece of paper

• A line segment

• A two-dimensional drawing

• A carton of milk

How can the volume of a rectangular prism be determined?

• By weighing it

• By counting the number of layers and cubes in each layer

• By measuring its surface area

• By measuring its height only

If a rectangular prism has 3 layers with 4 cubic inches in each layer, what is its volume?

• 10 cubic inches

• 8 cubic inches

• 12 cubic inches

• 16 cubic inches

What happens to the volume of a prism if it is reoriented?

• The volume halves

• The volume doubles

• The volume remains the same

• The volume changes