10.3: Volume of Pyramids and Cones · by their bases. The pyramids of Egypt are square pyramids...

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10.3: Volume of Pyramids and Cones

Cones

r

r

h

10.6: Volume of a sphere

Cross Sections of Solids

http://www.shodor.org/interactivate/activities/CrossSectionFlyer/

So a different way to fill space and create volume is to rotate ( 2-D shapes) about an axis and in doing so fill space and create volume.

Math Nation, Geometry, Section 9,Video 10:

Cross Sections and Plane Rotation

Homework:Due next classWorkbook:10.3 and 10.6, all

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