9'6 Surface Area and Volume of Spheres 5508

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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.

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Surface Area of a Sphere

• Surface area 4 p (radius)2
• S 4 p r2

C
Radius
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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.
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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.
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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.
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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 volumeof a sphere.

a
5 in.
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Find the Volume of a Sphere

• Find the volume of the sphere. Round your answer
  to the nearest whole number.
• a.

6 in.
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More Practice!!!!

• Textbook p. 519 2 7, p. 520 8 10
• Homework worksheet 9.6