1. Circumference is to cylinder
12-3 Cylinders & Cones
Right Cylinder
Right Rectangular Prism
Height
Perimeter is to prism As
Circumference is to cylinder
Lateral Area = Ph
Lateral Area = πd h
Total Area = 2B + LA
Total Area = 2π r2 + LA
Volume = Bh
Volume = π r2h

2. Right Cone Right Square Pyramid Height: h Slant Height: l
Height: h
Slant Height: l
Total Area = B + LA
Total Area = π r2 + LA

3. Find the lateral area & the volume of the StarKist can.
Round your answer to the nearest 10th.
3.3”
1.5”

4. 2. We are going to pretend that the grain silo is made up of a perfect cylindrical bottom and a perfect conical top. The total height of the silo is 55 feet. The top alone is 15 feet. If the diameter of the base is 35 feet, find the lateral area and the volume of the silo. Round your answer to the nearest 10th.

5. 3. If a cylinder’s volume is 192 and its height is 12, then what’s the lateral & total area?

6. If a cone has a radius of 8 and slant height of 17, then what is the lateral area, total area and volume?

7. Homework: Section 12.3 Written Exercises (p. 492-494) #1-33 (odds)