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OpenStudy (anonymous):
If the measure of arc BCD is 250°, what is the measure of angle BCD?
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OpenStudy (anonymous):
Directrix (directrix):
Arc BCD has measure 250. The arc DAB = 360 - 250 = 110. Angle BCD is an inscribed angle of the circle and cuts off arc DAB which is 110. The measure of an inscribed angle of a circle is 1/2 its arc = 1/2 (110) = 55.-->ANS
OpenStudy (apoorvk):
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