Chapter 6.6

Tangent Lines and Circles

Name: Tangent Lines and Circles
Description: A tangent line meets its radius at a right angle, and that one fact turns circle problems into triangle problems.

A tangent line meets its radius at a right angle, and that one fact turns circle problems into triangle problems.

lesson 36 of 42

By the end

01Use perpendicular radii and equal tangent lengths
02Join the centers of tangent circles and find their distance

In unit 6

6.1Angles, Polygons, and the Triangle Inequality
6.2Right Triangles
6.3Similar Triangles
6.4Area by Pieces and Ratios
6.5Circles: Angles and Measure
6.6Tangent Lines and Circles
6.7Coordinates and Lattice Points
6.8Moves and Shapes
6.9Thinking in Three Dimensions
6.10Which Idea Opens It? Geometry