What is the radius of circle whose circumference is 30π?
i am confused! can someone tell me how to find this? I dont know what to do with the pi.
is it 15? or....?
thank you!
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i am confused! can someone tell me how to find this? I dont know what to do with the pi.
is it 15? or....?
thank you!
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Verified answer
2 pi r = 30 pi
r = 30/2
r = 15
you are right.
2 Ï r = 30 Ï
r = 15
Why does Pi drive you crazy? It's just a number, Pi = 3.1416. So the circumference is 30 x 3.1416
What is the formula for the circumference? Answer: Pi x r x 2 Do you see what I see? In your problem, you can take the Pi and throw it away. Your answer is 30/2= 15
r = 15