1. Describe the shape resulting from the cross section.
Bell Ringer
Describe the shape resulting from the cross section. 1. 1. 2. 3. 4.

2. Announcements
Quiz on Monday
Test on Friday

3. Homework Check

4. Section 12.2 Volume of Prisms
R drive > Key > March 30_April 3 > 4_2__12.2 Volume of Prisms File > Save As > Key > Math > March 30_April 3 > 4_2__12.2 Volume of Prisms

5. Vocabulary
Volume- The measure of space occupied by a three dimensional region. It is measured in cubic units.

6. Formulas Area of a Rectangle: length x width
Area of a Triangle: ½ x base x height
Area of a Circle: ∏ x (radius)2

7. Notes
How to calculate volume:
The Area of the Base times Height

8. Example 1 Find the Volume of a Rectangular Prism
Find the volume of the rectangular prism.

9. Example 2 Find the Volume of a Rectangular Prism
Find the volume of a rectangular prism with a length of 10 feet, a width of 13 feet, and a height of 21 feet.

10. Example 3 Find the Volume of a Rectangular Prism
Find the volume of the rectangular prism.

11. Example 4 Volume of a Triangular Prism
Find the volume of the triangular prism.
Be careful not to confuse the height of the triangle and the height of the prism.

12. Example 5 Volume of a Triangular Prism
Find the volume of the triangular prism.

13. Example 6 Volume of a Triangular Prism
Find the volume of the triangular prism.

14. Example 7 Find the Missing Length
A room air conditioner can cool a room with a volume of cubic feet. If a room has a height of 8 feet and a length of 16 feet, what is the maximum width of the room?

15. Example 8 Find the Missing Length
A children’s rectangular pool holds 17.5 cubic feet of water. What is the width of the pool if its length is 3.5 feet and its height is 1 foot?

16. Example 9 Find the Missing Length
Cake batter is poured into a pan that is rectangular prism with an 8-inch square base. If the cake batter occupies 192 cubic inches, what will be the height of the batter?

17. Homework Section 12.2 #1 – 5, 9-12, 14

18. Homework Section 12.2 #1 – 5, 9 – 12, 14

19. Homework Section 12.2 #1 – 5, 9 – 12, 14