This document discusses the volume of 3D figures such as prisms. It defines volume as the measure of space occupied by a 3D figure. It lists common 3D figures including cones, pyramids, cylinders, and prisms. For prisms, it explains that prisms have at least 3 rectangular faces where the top and bottom faces are parallel. It provides examples of calculating the volume of prisms by finding the area of the base shape and multiplying it by the height of the prism. Students are instructed to practice volume calculation problems in their workbook.

1. Volume for 3
Dimensional
Figures

2. Volume Definition
The measure of
space occupied by
a 3 dimensional
figure.

3. Movie Time
Let’s watch a
movie!!
www.youtube.com/watch?v=JijhDDJvExo

4. Cones
Pyramids
Cylinders
Prisms
Typesof3DimensionalFigures

5. Prisms
A prism is a 3 dimensional
figure with at least 3
rectangular faces and top
and bottom face are parallel.
• Rectangular prism
• Triangular prism

6. To find the volume of a prism,
determine the shape of the base
and
1.Calculate area of base
2.Then multiply by the height

7. Let’ s Practice

8. Example #1
4 in
5 in
11 in
Find the volume of the
prism above.

9. Solution
1. Determine the type of
base the prism has.
This determines the
name of the prism.
2. Calculate the area of the
base
A = lw
A = 11(5)
A = 55 in2
3. Take the area of the base
and multiply it by the
height.
V = 55(h)
V = 55(4)
V = 220 in3

10. Let’ s Practice

11. Example #2
Find the
volume of the
prism.

12. Solution
1. Determine the type of
base the prism has.
This determines the
name of the prism.
2. Calculate the area of the
base
A = ½ bh
A = ½ (4)(4)
A = 8 in2
3. Take the area of the base
and multiply it by the
height.
V = 8(h)
V = 8(6)
V = 48 in3

13. PRACTICE!!!
Tear out page 119 from
workbook
Problems #1 - 8