Finding Volume of Rectangular and Composite Prisms

Finding Volume of Rectangular Prisms and Cubes

Lesson Objective

I will be able to calculate the volume of a rectangular prism or cube by counting cubes or applying the formula.

Let's get started!

Volume: the amount of space that a substance or object occupies, or that is enclosed within a container.

When answering a volume problem it is cubic measurement.

Multiple Choice

What is volume?

• a measure of the total area that the surface of the object occupies

• the amount of space in a certain 3D object.

• the space occupied by a flat shape or the surface of an object

Multiple Choice

What is the formula used to find the volume of a rectangular prism?

• V = Lw

• V = Lwh

• V = 1/2bh

• V = 2∏r

Multiple Choice

Which label would NOT be appropriate for volume.

• square miles

• inches³

• cm³

• cubic feet

Multiple Choice

When you are finding the length x width of a 3-dimensional figure, this is also called the:

• base

• perimeter

• volume

• width

Multiple Choice

What is the volume of this prism?

• 6 cubic units

• 12 cubic units

• 4 cubic units

Multiple Choice

what is the volume?

• 72

• 27

• 1.5

• 272

Finding the area of the base of a rectangular prism (or cube)

• When you are finding the base, multiply the height and the length.

• 3 inches x 7 inches = 21 square inches

Multiple Choice

When you are finding the length x width of a 3-dimensional figure, this is also called the:

• base
• perimeter
• volume
• width

Multiple Choice

What is the length of this rectangular prism?

• 11 inches

• 33 inches

• 7 inches

• I don't know

Multiple Choice

What is the height of this rectangular prism?

• 3 inches

• 33 inches

• 11 inches

• I don't know

Multiple Choice

What shape is this?

• cone
• pyramid
• rectangular prism
• cube

Time for Practice!

Multiple Choice

A cube has a length of 3 inches.  Find the volume.

• 9 inches³
• 12 inches³
• 27 inches³
• 18 inches³

Multiple Choice

What is the volume of this rectangular prism?

• 6 cubic units
• 16 cubic units
• 12 cubic units
• 10 cubic units

Multiple Choice

What is the volume of the cereal box?

• 230 in³

• 97 in³

• 132 in³

• 288 in³

Multiple Choice

What is the volume of this prism?

• 16 cubic cm
• 12 cubic cm
• 48 cubic cm

Multiple Choice

length=2

width=2

height=3

• Volume=12

• Volume=7

• Volume=10

• Volume=18

Multiple Choice

Mrs. Dunnahoo has a Finding Dory tissue box on her desk. The box has a base of 8.4 in² and a height of 5 inches. what is the volume of the tissue box in cubic inches?

• 42 in³

• 40.20 in³

• 45 in³

• 42.1 in³

Multiple Choice

Each side of this ice cube measures 2 inches. What is the volume of the ice cube?

• 6 cubic inches

• 8 cubic inches

• 12 cubic inches

• 8 square inches

Multiple Choice

• 410 cm³

• 420 cm³

• 402 cm³

• 401 cm³

Let's reflect

Poll

How do you feel about volume of a rectangular prism?