volumepresentation 140319155608-phpapp01
TRANSCRIPT
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Volume for 3 Dimensional Figures
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Volume Definition
The measure of space occupied by a 3 dimensional figure.
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Movie Time
Let’s watch a movie!!
www.youtube.com/watch?v=JijhDDJvExo
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Cones
Pyramids
Cylinders
Prisms
Types of 3 Dim
ensional Figures
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Prisms
A prism is a 3 dimensional figure with at least 3 rectangular faces and top and bottom face are parallel.• Rectangular prism• Triangular prism
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To find the volume of a prism, determine the shape of the base and1.Calculate area of base2.Then multiply by the height
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Let’ s Practice
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Example #1
4 in 5 in
11 inFind the volume of the prism above.
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Solution
1. Determine the type of base the prism has. This determines the name of the prism.
2. Calculate the area of the base
A = lwA = 11(5)A = 55 in2
3. Take the area of the base and multiply it by the
height.V = 55(h)V = 55(4)
V = 220 in3
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Let’ s Practice
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Example #2
Find the volume of the prism.
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Solution
1. Determine the type of base the prism has. This determines the name of the prism.
2. Calculate the area of the base
A = ½ bhA = ½ (4)(4)
A = 8 in2
3. Take the area of the base and multiply it by the
height.V = 8(h)V = 8(6)
V = 48 in3
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PRACTICE!!!Tear out page 119 from
workbookProblems #1 - 8