Answer: 8 pi
Step-by-step explanation: So we know that area of a circle is pi times r^2 so if we reverse that formula it would be square root of 16 pi which would be 4 pi and divide by pi so the radius is 4. And we know that the formula for circumference is 2 times pi times r, so 2 times 4 times pi is 8 pi. 8 pi is the cIrcumference! :)
No, it won’t work. The greatest common factor between 45 and 27 is 9, but 45-27=18. So it cannot work.
Answer:
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Step-by-step explanation:
