8th
Volumes
Grade
r
h
r
h
V = πr2h
4
V = πr3
3
r
V = 1 πr2h
3
Workbook 1
MathWorksheets4Kids.com
E
Volume - Cone
Find the exact volume of each cone.
1)
3)
3 in
5 yd
7 in
18 ft
12 yd
2)
14 ft
Volume =
Volume =
4)
Volume =
5)
6)
5 ft
3 ft
9 in
14 yd
6 yd
8 in
Volume =
Volume =
7)
Volume =
8)
9)
18 yd
9 in
7 ft
8 yd
12 ft
6 in
Volume =
Volume =
Volume =
10) A party hat has a diameter of 18 feet and a height of 25 feet. Find the volume of air it
can occupy.
Volume =
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–1–
M
Volume - Cone
Find the volume of each cone. Round the answer to nearest tenth. ( use π = 3.14 )
1)
3)
43 in
19 ft
2)
17 yd
31 yd
35 ft
42 in
Volume =
Volume =
4)
Volume =
5)
6)
43 ft
33 yd
51 in
16 yd
44 in
24 ft
Volume =
7)
8)
Volume =
9)
19 yd
37 ft
49 in
40 ft
41 yd
Volume =
27 in
Volume =
Volume =
Volume =
10) A conical flask has a diameter of 20 feet and a height of 18 feet. Find the volume of air
it can occupy.
Volume =
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–2–
D
Volume - Cone
Find the volume of each cone. Round the answer to two decimal places. ( use π = 3.14 )
1)
3)
5.8 in
2.5 yd
7.8 in
18.3 ft
12.3 yd
2)
7.1 ft
Volume =
Volume =
4)
Volume =
5)
6)
5.9 ft
1.2 cm
9.1 in
14.6 yd
6.2 yd
8.8 in
Volume =
Volume =
7)
Volume =
8)
9)
18.7 yd
14.4 ft
13.1 ft
10.6 in
8.2 yd
6.5 in
Volume =
Volume =
Volume =
10) A conical tank has a radius of 18.3 inches and a height of 48.6 inches. Find the volume of the tank.
Volume =
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–3–
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E
Volume - Mixed Shapes
Find the exact volume of each shape.
1)
2)
3)
14 ft
2y
d
5 yd
18 ft
18 in
10 yd
Volume =
Volume =
4)
Volume =
5)
6)
t
8 yd
8 in
8 ft
3f
d
20 y
8 in
6 ft
12 yd
Volume =
Volume =
8)
9)
8 ft
10
yd
7)
Volume =
5 yd
18 ft
in
15
5 yd
Volume =
© mathworksheets4kids.com
Volume =
Volume =
–9–
M
Volume - Mixed Shapes
Find the volume of each shape. Round the answer to nearest tenth. ( use π = 3.14 )
2)
3)
46
f
t
1)
20 ft
35 in
42 yd
in
42
40 in
20 ft
Volume =
Volume =
4)
Volume =
5)
6)
19 in
37 yd
ft
21 ft
41 in
14
36 yd
27 ft
Volume =
Volume =
8)
9)
ft
t
25 yd
d
39 y
42 in
10
40 f
43 in
20 yd
26 ft
7)
Volume =
Volume =
© mathworksheets4kids.com
Volume =
Volume =
–10–
D
Volume - Mixed Shapes
Find the volume of each shape. Round the answer to two decimal places. ( use π = 3.14 )
1)
2)
3)
ft
17.9 yd
5.9
yd
2.1 in
13.3 yd
3.8
in
3.4 in
Volume =
Volume =
Volume =
5)
6)
5.5 yd
14.2 ft
10.1 in
12
.3
yd
4)
2.7
3.9 in
12.4 ft
5.5 yd
Volume =
Volume =
7)
Volume =
8)
9)
9.9 in
7.2 ft
.4
12
in
yd
5.2 yd
2.1
13.9 in
4.6 yd
Volume =
© mathworksheets4kids.com
Volume =
Volume =
–11–