Move point c so the measure of arc ac is 50 what is the measure of abc?

Explanation:

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The measure of the arc AC in degrees is equal to the measure of the central angle that forms it.

The angle ABC, formed by two chords that intersect at the point B on the circle, is named inscribed angle.

It is demonstrated that the measure of the inscribed angle is half the measure of the central angle.

Thus, the measure of angle ABC is half the measure of arc AC.

Thus, for m arc AC = 50º, you get:

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