1. 8-6 Volume of Pyramids and Cones Course 3

2. Warm Up 1. 2. A cylinder has a height of 4.2 m and a diameter of 0.6 m. To the nearest tenth of a cubic meter, what is the volume of the cylinder? Use 3.14 for . 1.2 m 3 Course 3 8-6 Volume of Cones

3. Learn to find the volume of cones. Course 3 8-6 Volume of Cones

4. Vocabulary cone Insert Lesson Title Here Course 3 8-6 Volume of Cones

5. Insert Lesson Title Here Course 3 8-6 Volume of Cones A cone has a circular base. The height of a pyramid or cone is measured from the highest point to the base along a perpendicular line.

6. Course 3 8-6 Volume of Cones VOLUME OF PYRAMIDS AND CONES (2 2 )

7. Course 3 8-6 Volume of Cones

8. Course 3 8-6 Volume of Cones Additional Example 1B: Finding the Volume of Pyramids and Cones 1313 V = 9 10 V = 30  94.2 in 3 V = Bh 1313 B = (3 2 ) = 9 in 2 Use 3.14 for . Find the volume of the figure. Use 3.14 for .

9. Course 3 8-6 Volume of Cones 1313 V = 9 7 V = 21  65.9 m 3 V = Bh 1313 B = (3 2 ) = 9 m 2 Use 3.14 for . Check It Out: Example 1B 7 m 3 m Find the volume of the figure. Use 3.14 for .

10. Course 3 8-6 Volume of Cones 1313 V = 9 6 V = 18  56.5 m 3 V = Bh 1313 B = (3 2 ) = 9 m 2 Use 3.14 for . Word Problem 6 m 3 m An ice cream package is cone shaped. It has a radius of 3 cm and a height of 6 cm. Find the volume of the cone? Use 3.14 for .

11. Course 3 8-6 Volume of Cones Additional Example 2: Exploring the Effects of Changing Dimensions A cone has a radius of 3 ft. and a height of 4 ft. Explain whether tripling the height would have the same effect on the volume of the cone as tripling the radius. When the height of the cone is tripled, the volume is tripled. When the radius is tripled, the volume becomes 9 times the original volume.

12. Lesson Practice Find the volume of each figure to the nearest tenth. Use 3.14 for . 78.5 in 3 Insert Lesson Title Here Course 3 8-6 Volume of Cones 1. the cone