1. Geometry CP Mrs. Mongold
Lesson 10-5: Tangents
Geometry CP
Mrs. Mongold

2. Tangent: a line that shares only one point with a circle and is perpendicular to the radius or diameter at that point.
Point of tangency: the point that a tangent shares with a circle
Two lines that are tangent to the same circle and meet at a point, are congruent from that point to the points of tangency

3. Lines AC and AF are tangent to circle X at points B and E respectively
Lines AC and AF are tangent to circle X at points B and E respectively -B and E are points of tangency C F E B A

4. Radius XB is perpendicular to tangent AC at the point of tangency

5. AE and AB are congruent because they are tangent to the same circle from the same point

6. Is LM a tangent? Justify.

7. Find x if WE is tangent to circle D

8. Find x

9. Find the perimeter of the triangle