Solid of Revolution (part 3)

Learn more: http://www.khanacademy.org/video?v=tqfU9mC2yFU
Figuring out the equation for the volume of a sphere.

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Length: 8 minutes

Solid of Revolution (part 4)

Length: 9 minutes

Solid of Revolution (part 5)

Length: 9 minutes

Solid of Revolution (part 6)