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9.6 Surface Area and Volume of Spheres 5/5/08

9.6 Surface Area and Volume of Spheres 5/5/08. A sphere is the set of all points in space that are the same distance from a point, the center of the sphere. A hemisphere is created when a sphere is cut in half. Surface Area of a Sphere. Surface area = 4 ? (radius) 2 S = 4 ? r 2. C.

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