The circle shown below has ab and bc as its tangents: ab and bc are two tangents to a circle which intersect outside the circle at a point b. if the measure of arc ac is 160°, what is the measure of angle abc? 80° 40° 60° 20°
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Let O be the center of the circle, and let A and C be the points where the tangents AB and BC touch the circle, respectively. Show more…
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