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OpenStudy (anonymous):
If arc AC=178°, and arc BC = 42°, what is m∠BDC? 110° 65° 68° 136°
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OpenStudy (anonymous):
OpenStudy (theraggedydoctor):
I'm pretty sure its 68 but im not positive :/
OpenStudy (anonymous):
Okay thanks... what formula did you use to figure it out?
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