The document contains questions and examples about calculating the surface area and lateral area of prisms and cylinders. It defines surface area as the total area of the outer surface of a solid figure, including both lateral and end areas. Lateral area refers specifically to the area of the figure's sides or lateral faces, and is always less than or equal to the surface area. Sample problems demonstrate how to calculate the lateral and surface areas of various prisms and cylinders using common formulas.

1. Opener: Name the following solids. (5th one on Opener Sheet)
1. 2.
3. 4.
1

2. Homework Questions:
2

3. Section 10.4: Surface Area of Prisms and Cylinders
3

4. A. What do you think surface area is?
4

5. B. What do you think lateral area is?
C. Which should be larger ‐ lateral area or surface area?
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6. Finding lateral and surface area for a prism:
1.
10 cm
10 cm
6 cm 4 cm
4 cm 6 cm
Formula: L.A. =
S.A. =
2.
6 ft
12 ft 12 ft
6 ft
6 ft
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7. Finding lateral and surface area of a cylinder:
1.
r
h
Formula: L.A. =
S.A. =
3 in
2. 3 in
10 in 10 in
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8. Find the surface area of composite
Note: Surface area only includes...
figures:
1.
20
2
2
2.
3
3.
3
3
2
8

9. 9