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__
Given: AD diameter of circle P.

__ Given: AD diameter of circle P.-example-1

2 Answers

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arcs get their angle measurement from the central angle they're in.

in this case the arcAB has a central angle of ∡1, and if ∡1 = 30°, the arcAB is the same.
User Dima Chubarov
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2 votes
If I'm reading it right it is 15
User Sauceboat
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