Triangle Congruency

Triangle Congruency

1. Right Triangle Congruency

   • Resources
     • http://www.mathsisfun.com/geometry/triangles-congruent-finding.html
     • https://www.wyzant.com/resources/lessons/math/geometry/triangles/right_triangle_congruence
   • What is the HL theorem?
     • 2 triangles with the same length of hypotenuse and the same length for one of the other two legs.
   • Practice Problems
     • 1. LL
     • 2. HL
     • 3. HA
     • 4. HA
     • 5. HA
     • 6. Not Congruent
     • 7. Not Congruent
     • 8. LL

2. Exterior Angle Theorem

   • The measure of an exterior angle of a triangle is greater than either of the measures of the remote interior angles.
   • Practice Problems
     • 1. 70
     • 2. 65
     • 3. 120
     • 4. 105
     • 5. 95
     • 6. 30
     • 7. 86
     • 8. 130
     • 9. 12
     • 10. 11