# geometry

Find the volume in terms of pi of a sphere with a surface area of 9 pi sq ft

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1. volume=4/3* PI r^3

but area=4PIr^2 so r^2=9PI/4Pi=9/4
or r= 3/2

volume=4/3 * PI* (3/2)^3

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2. 9/2 pi ft. cubed

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posted by kfw
3. Thank you i was stuck on this problem for a long time wonder how to approach it but all along it was simple. Thanks Again

4. the answer to this is:
1)A 2)A 3)B 4)B5)C 6)B 7)B 8)B 9)A 10)D

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posted by kakashi
5. Thank you

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posted by Lex

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