Circle O is shown. Tangents C B and A B intersect at point B outside of the circle. The measure of the first arc formed is 150 degrees, and the measure of the second arc formed is 210 degrees.
In the diagram of circle O, what is the measure of ?

30°
40°
50°
60°

Note that this point is also known as the point of tangency. The tangent to a circle is said to be perpendicular to the radius at the instance or at the point of tangency.

In the circle above, the measure of the first arc was 150 degrees, and that of the second arc formed is 210 degrees which will give us a total of 360 degrees. Therefore, the measure of O will be accurate at 30 degrees.

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Circle O is shown. Tangents C B and A B intersect at point B outside of the circle. The measure of the first arc formed is 150 degrees, and the measure of the second arc formed is 210 degrees. In the diagram of circle O, what is the measure of ? 30° 40° 50° 60°

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Circle O is shown. Tangents C B and A B intersect at point B outside of the circle. The measure of the first arc formed is 150 degrees, and the measure of the second arc formed is 210 degrees.
In the diagram of circle O, what is the measure of ?

30°
40°
50°
60°