Main Ideas/Questions Notes/Examples Tangent A tangent line intersects a circle at exactly point, called the point of tangency. LINES A line is tangent to a circle if and only if it is to a drawn to the point of tangency. B Directions: Determine if AB is tangent to circle P. 1. 2 . B 15 P If two segments from the same If a polygon is circumscribed around external point are tangent to a MORE a circle, then all sides are tangent. circle, then they are congruent. TANGENT LINE Properties AB = CB Directions: Find each value or measure. Assume that segments that appear to be tangent are tangent 10. Find x. 11. Find PQ. 14x -13 8 + 5 5x + 23 & - 19 B