Congruent Angles and Bisectors: Lesson (Basic Geometry Concepts)

Here you'll learn how to find unknown values using the definitions of angle congruency and angle bisector.

This video provides the student with a walkthrough on identifying congruent angles and angle bisectors.

This is part of CK-12’s Basic Geometry: Basics of Geometry. See more at:

1. Basic Geometric Definitions:

2. Distance Between Two Points:

3. Congruent Angles and Angle Bisectors:

4. Midpoints and Segment Bisectors:

5. Angle Measurement:

6. Angle Classification:

7. Complementary Angles:

8. Supplementary Angles:

9. Linear Pairs:

10. Vertical Angles:

11. Triangle Classification:

12. Polygon Classification: