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

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Presentation transcript:

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 π (radius)2 S = 4 π r2 C Radius

Find the Surface Area of a Sphere Find the surface area of the sphere. Round your answer to the nearest whole number. a. The radius is 8 in. 8 in.

Find the Surface Area of a Sphere Find the surface area of the sphere. Round your answer to the nearest whole number. b. The radius is 5 cm. 10 cm.

Volume of a Sphere Volume = C radius

Find the Volume of a Sphere Find the volume of the sphere. Round your answer to the nearest whole number. a. 2 ft.

Find the Volume of a Sphere Find the volume of the hemisphere. Round your answer to the nearest whole number. b. A hemisphere has half the volume of a sphere. a 5 in.

Find the Volume of a Sphere Find the volume of the sphere. Round your answer to the nearest whole number. a. 6 in.

More Practice!!!! Textbook – p. 519 #2 – 7, p. 520 # 8 – 10 Homework – worksheet 9.6