surface+area+of+a+sphere

Vocabulary
Sphere- is the set of all points in a space that are the same distance, r, from a given point known as the center of the sphere.

Surface Area of a Sphere
S=4pier^2

Surface Area of a Softball
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//The softball is a sphere with a diameter of 2.5. The radius is half the diameter.// S=4pie r^2 S=4pie(1.25)^2 S=4(1.5625)pie S=6.25 pie S=19.63 square feet

http://www.teacherschoice.com.au/Maths_Library/Area%20and%20SA/area_2.htm
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