Sphere

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Sphere
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• http//www.youtube.com/watch?vcAxHYFRx1Fs

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Spheres
SA 4?r2
a hemisphere splits a sphere exactly in half
The top part of a
hemisphere is called a great circle.
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Example
1) Find the surface area of the sphere given the
area of the great circle is 201.1 in2.
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Example
3) Find the surface area of the hemisphere.
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Solid Formula
Volume of a Sphere V (4/3) ?r3
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• http//www.youtube.com/watch?vxuPl_8o_j7k

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Example
4) A sphere has a diameter of 5. Find its
volume.
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• What was the inverse of squaring something?

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• Similarly, what do you think the inverse of
  cubing something (raising something to the 3rd
  power) will be?

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