Grade 9 Math

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Grade 9 Math Volume Lesson Focus on Formulas and
Sample Problems.
Created by Tanya Lahey Grade 7, 8, 9 Math
Teacher Baddeck Academy 07/08
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What is Volume?
Total Capacity
Total Distance
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How would you calculate the volume of a sphere?
V 1/3 pr2
V 4/3pr3
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How do you calculate the volume of a square
prism???
VArea of Base(h)
V ½ (b)(h)
V L x W x H
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V ½ (b)(h)(h) is the volume formula for a
Triangular Prism
Cylinder
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To Calculate the Volume of a Cone you would use
this formula
V 1/3 p r3h
V 1/3 p r2h
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The formula V pr2h is used to calculate the
volume of a ???
Cylinder
Cone
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The Volume of a Cube can be found by using the
following formula
V S3
VLxWxH
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V 1/3(1/2b)(h)(h) is used to calculate the
volume of a???
Triangular Prism
Triangular Pyramid
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How do you calculate the volume of a square
pyramid?
V½(L)(W)(H)
V1/3(L)(W)(H)
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The following cone has a radius of 3m, and a
height of 7m. What is the volume of this cone?
68.75cm3
75.94cm3
65.94cm3
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A Cylinder has a height of 25cm, and a volume of
500cm3. What is the radius of this cylinder?
3.56cm3
2.52cm3
4.52cm3
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A Triangular Pyramid has a base that is 6.5m long
by 2.3m wide. The height of this pyramid is
8.7m. What is the volume of this figure?
75.25m3
34.45m3
43.35m3
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A basketball has a volume of 345cm3, what is the
radius of this ball?
4.35 cm
6.99 cm
17.33 cm
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A triangular pyramid has a volume of 736cm3, and
the dimensions of its base are 10cm wide by 13cm
high. Calculate the height of the pyramid.
12.2 cm
33.96cm
25.85cm
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Calculate the volume of a hollow tube using the
following measurements Height 55cm, Diameter
15cm, Thickness 2cm.
2417.8 cm3
9714.4 cm3
4490.2 cm3
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Calculate the volume of the following composite
figure, using the following dimensions. Bottom
L 6cm, W 7cm, H 20cm. Middle Diameter
3cm, Height 8cm. Top Radius 2cm.
250.25 cm3
930.01 cm3
765.89 cm3
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The Volume of this ball is 1540cm3. Find its
radius!
12.45 cm
7.16 cm
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