Sprint 31 · Chapter 7

The Tangent-Radius Theorem

Student can prove and apply Theorem 10.1 (tangent is perpendicular to radius at point of contact) to find missing lengths.

1. 1Theorem 10.1
2. 2Shortest Distance Proof
3. 3Right Triangles at the Tangent
4. 4Example: Calculating Tangent Length
5. 5Practice: Finding the Radius
6. 6Check Your Understanding