Chapter 12 12.5 Volume of Pyramids and Cones Find the area of the base of the regular pyramid 1.Base is a regular hexagon Area of hexagon 2.

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Presentation transcript:

Chapter Volume of Pyramids and Cones

Find the area of the base of the regular pyramid 1.Base is a regular hexagon Area of hexagon 2.

Find the area of the base of the regular pyramid 1.Base is an equilateral triangle Area of equilateral triangle 2.

Theorem 12.9 Volume of a Pyramid B is the area of the base H is the height Why is it 1/3?

Find the volume of each regular pyramid 1.Square based pyramid B = s 2 = 12 2 = Find the height h = 8 3.Fill in the formula

Find the volume of each regular pyramid 1.Triangle based pyramid 2.Find the height h = 9 3.Fill in the formula

Find the volume of each regular pyramid 1.Hexagon based pyramid 2.Find the height h = 3 3.Fill in the formula

Find the volume of the solid. Each prism is right 1.Compose of two solids Cube and Square based pyramid 2.Volume of Cube V = (8 3 ) = 512 cm 3 3.Volume of pyramid 4. Total Volume is the sum of the two

Homework #66 Pg , 10-16, 20, 22-24, 30