please give me a step wise for all three question they are seprate request
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a. 30
Step-by-step explanation:
considering bc is a straight line
angle AOC=180-60
AOC=120
now since it's a circle which means sides OA = OC = R of the circle
which means it's equilateral triangle
both angles are x
x+x+120=180
2x=60
x=30
as for the next questions you have not stated what to find.
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