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OpenStudy (anonymous):
If the measure of arc DCB = 120o, and the measure of DAC = 20o, which is the measure of CAB?
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OpenStudy (anonymous):
OpenStudy (anonymous):
this is another one with no r so r will be in the answer...
OpenStudy (anonymous):
so its going to be no 120*2*pi *r/360
OpenStudy (anonymous):
Worse, all u know is x+20 -> 120...
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