Notes 13.5 ­ Volume of pyramids and cones.notebook
April 01, 2013
Bellwork
Find the volume.
2.
1.
3 in
3 cm
2 cm
4 cm
7 in
Notes 13.5 ­ Volume of pyramids and cones.notebook
April 01, 2013
Assignment 13.4
11. 100 unit cubes
4 layers of 5 rows of 5 cubes
pg. 746 ­ 749
# 11 ­ 17 odd, 29 ­ 33 odd, 37, 55, 59
13. 512 in3
15. 318.26 in3
17. 288.40 ft3
29. 13.92 yd
37. 1900.66 in3
55. 98 m2
31. 6.99 in
33. 6.00 m
59. 144 cm2
Notes 13.5 ­ Volume of pyramids and cones.notebook
Notes 13.5 - Volumes of Pyramids and Cones
Volume of a Pyramid
1
V = Bh
3
Remember...
B = area of base
h = height of figure/solid
April 01, 2013
Notes 13.5 ­ Volume of pyramids and cones.notebook
April 01, 2013
Volume of a Cone
1
V = Bh
3
Remember...
B = area of base
h = height of figure/solid
Notes 13.5 ­ Volume of pyramids and cones.notebook
Example 1 ­ Find the volume of the regular pyramid.
April 01, 2013
Steps to Solve:
1. Find B
2. Substitute B and h
3. Solve
Notes 13.5 ­ Volume of pyramids and cones.notebook
Please get out a blank piece of paper
April 01, 2013
Notes 13.5 ­ Volume of pyramids and cones.notebook
Example 2 ­ Find the volume.
April 01, 2013
Notes 13.5 ­ Volume of pyramids and cones.notebook
April 01, 2013
Notes 13.5 ­ Volume of pyramids and cones.notebook
Example 3 ­ Solve for h in the regular pyramid if V = 270 m3.
April 01, 2013
Steps to Solve:
1. Find B
2. Substitute
3. Solve for h.
Notes 13.5 ­ Volume of pyramids and cones.notebook
April 01, 2013
Example 4 ­ Find the volume of the solid. All solids are right and all bases are regular.
Notes 13.5 ­ Volume of pyramids and cones.notebook
Assignment 13.5
pg. 755 ­ 758
# 9 ­ 25 odd, 41
April 01, 2013