Rectangular Prisms

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Rectangular Prisms

• V L x W x H

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Triangular Prisms

• V ½ bh x h

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Cylinders

• V pr2h

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Think and Discuss

• What is a cubic unit?
• Tell what units you would use to express the
  volume of a cylinder if the radius and height are
  given in yards? Feet? Inches?

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9-3 Volume of Pyramids and Cones

• Volume of a pyramid 1/3 area of base x height
• V 1/3 Bh

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Practice with Pyramids
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Cones

• Volume 1/3 pr2h

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Cone Practice
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Think and Discuss

• Compare the formulas for the volume of a pyramid
  to the volume of a prism.
• How many cones would fit inside a cylinder with
  the same base?

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