Since arc CD is 100 degrees, the rest of the circle must be 260 degrees. Since the rest of the circle is made up of two equal arcs, then arc BC must be half of 260 degrees. Thus, the answer is 130 degrees, C.
Step-by-step explanation:
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Answer:a.35 degrees b. 145 degrees
Step-by-step explanation: angle 2 and angle 6 are equal they are corresponding
Angle 2 and angle 8 are supplementary they equal 180. So 180-35=145
