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IrinaK [193]
3 years ago
9

A circle has a Area of 841pi. What is the circumference if the circle?

Mathematics
2 answers:
Alexandra [31]3 years ago
4 0
You plug in 841pi to the area equation.
841pi=pi(r)^2
You already know pi so u can take that out to find the radius.
841=r^2
r=29
Now you have the radius and can find the circumference.
Plug numbers in
C=2(pi)(29)
C=58pi
Hope this helped and sorry if I am wrong!! If you need further explanation you can ask.
Mkey [24]3 years ago
3 0

Answer:102.802

Step-by-step explanation:

2πr

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