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OpenStudy (anonymous):
Help? Will medal and fan! What is the length of an arc cut off by a central angle of 40 degrees and radius 4 meters ? A) 2π/9meters B) 8π/9meters C) 2π/3meters D) 8π/3meters Is it A?
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OpenStudy (cwrw238):
Hint : the length of whole circle ( the circumference) is 2πr meters = 8π meters for a circle with radius 4 m
OpenStudy (cwrw238):
all those ?'s mean pi
OpenStudy (anonymous):
Hmm, do you mean my answer is wrong and I should use that to try again @cwrw238 ? Because I still get 2pi/9meters :(
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