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OpenStudy (anonymous):
How do you find the diameter of a circle that has circumference of 81 meters?
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jimthompson5910 (jim_thompson5910):
By using the formula C = pi*d where C = circumference of circle pi = 3.14 (approximately) d = diameter of circle
OpenStudy (anonymous):
I don't think I did it right. I got 25,434. What did you get?
jimthompson5910 (jim_thompson5910):
C = pi*d 81 = pi*d ... plug in the given circumference, solve for d 81/pi = d d = 81/pi d = 81/3.14 d = 25.796178343949 That's approximate of course. Use more decimal digits of pi to get a more accurate answer.
OpenStudy (anonymous):
ok.
jimthompson5910 (jim_thompson5910):
not sure how you got 25,434
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jimthompson5910 (jim_thompson5910):
maybe you multiplied?
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