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OpenStudy (anonymous):
helppp!!! plss If the measure of the ABC = 40o, which is the measure of arc AC?
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OpenStudy (anonymous):
OpenStudy (***[isuru]***):
do u know the value of the radius ?
OpenStudy (anonymous):
no it dosent say this are the answers 20o 40o 60o 80o
OpenStudy (***[isuru]***):
20o = 20 degrees ??
OpenStudy (***[isuru]***):
or is it some other measurement ??
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OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
20 degreess
jimthompson5910 (jim_thompson5910):
ABC is an inscribed angle and it's always half of the central angle that cuts off the same arc so arc AC is twice as large as angle ABC, making arc AC = 2*(angle ABC) arc AC = 2*(40) arc AC = 80 degrees
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