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Circle segments and angles .

Circle segments and angles .-example-1
User Yasirkula
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Answer:

arcBC = 148° ; ∠ACD = 26°

Explanation:

Note that these two problems given to us uses the "inscribed angle theorem", which states that the angle is 1/2 the measurement of a central angle. Keep in mind that the central angle's measurement is the same as it's projected arc, and so the inscribed angle would also be 1/2 the measurement of the projected arc. This works vice versa too. The projected arc would be twice as large as the inscribed angle's measurement.

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User GivP
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