1. Volumes of Prisms and Cylinders
GEOMETRY LESSON 10-5
in.3; in.3
cm3; cm3
m3; m3
cm3
in.3
14. a. 28 ft3
b lb
in.3
16. Answers may vary. Sample: 2 cm by 4 cm by 10 cm; 4 cm by 4 cm by 5 cm cm
18. 5 in.
19. 6 ft
20. 19,683 ft3
pots
Pages Exercises
ft2
2. 80 in.3 m3
4. 14 cm3
5. about cm3
ft.3
mm3
in.3 26 9
10-5

2. Volumes of Prisms and Cylinders
GEOMETRY LESSON 10-5 cm
27. 3 cm
28. Bulk; cost of bags = $ , cost of bulk is ≈ $1164.
29. cylinder with r = 2 and h = 4; units3
30. cylinder with r = 4 and h = 2; units3
31. cylinder with r = 2
31. (continued)
and h = 4; units3
32. cylinder with r = 5,
h = 2, and a hole of radius 1; units3
cm3
in.3
35. a. 730 in.2
b. 528 in.2
c. 756 in.3
ft3
23. a. 809,137 ft3
b. 1,398,188,736 in.3
c. 6,052,765 gal
24. Reword as “If two plane figures have the same height
and the same width at every level, then they have the
same area.”
units3
10-5

3. Volumes of Prisms and Cylinders
GEOMETRY LESSON 10-5
35. (continued)
d. 476 in.3
36. a. circumference 8 in. and height 11 in.: V ≈ in.3; circumference 11 in. and height 8 in.:
V ≈ in.3;
one is about times the volume of the other.
b. about 6.5 in. by in.
cm3
38. 4 units
39. The volume of B is twice the volume of A.
40. B
41. G
42. A
43. C
44. B
45. [2] L.A. = 2 rh and A = bh; 2 r is the length of the base when the cylinder is unwrapped.
[1] correct formulas given, but comparison unclear
mm2
ft2 ft 1 2 1 2
10-5

4. Volumes of Prisms and Cylinders
GEOMETRY LESSON 10-5
49. 70; 110, 70
50. 25; 160, 105, 95
51. 50; 14, 144, 148, 54
10-5