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A circle centered around point O. Segment O C is a radius of the circle. Point A lies outside the circle, and line A C is a line that could potentially be tangent to circle O. A line segment connects point A to point O. Line segment A O, line segment O C, and line A C create the triangle A O C. Angle A of triangle A O C is thirty-two degrees. Angle O of triangle A O C is fifty-eight degrees. Angle C of triangle A O C is unknown.

A circle centered around point O. Segment O C is a radius of the circle. Point A lies outside the circle, and line A C is a line that could potentially be tangent to circle O. A line segment connects point A to point B. Line segment A B, line segment B C, and line A C create the triangle A B C. Angle A of triangle A O C is fifty-one degrees. Angle B of triangle A B C is forty-nine degrees. Angle C of triangle A B C is unknown.