Sphere Surface Area = <span> 4 • <span>π <span>• r²
For it to equal 16 PI, then radius must equal 2
4*PI*2*2 = 16 PI
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Sphere Volume = <span> 4/3 • <span>π <span>• r³
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Sphere Volume = <span> 4/3 • <span>π <span>• 2^3
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Sphere Volume = <span> 4/3 *PI * 8
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Sphere Volume = <span> 32 / 3 PI
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Sphere Volume = <span> 10.666 PI cubic feet AND I think that is answer B
which SHOULD read 10 (2/3) PI ft^3
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I'm assuming you're looking for the measure of angle y. Rule is that angle y will be equal to 1/2 of its intercepted arc. That arc measures 360-160-60 which is 140. Half of 140 is 70. So the first choice above is the one you want.
Fifteen divided by three is 18
Answer:
I dont really do this kind of work but i think its A
Step-by-step explanation: