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Exploring Spheres: Surface Area and Volume Calculations

Understand surface area and volume formulas for spheres. Practice calculating areas and volumes of spheres and hemispheres.

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Exploring Spheres: Surface Area and Volume Calculations

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  1. 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.

  2. Surface Area of a Sphere • Surface area = 4 π (radius)2 • S = 4 π r2 C Radius

  3. 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.

  4. 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.

  5. Volume of a Sphere • Volume = C radius

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

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

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

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

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