Triangle Congruence Theorems, Two Column Proofs, SSS, SAS, ASA, AAS Postulates, Geometry Problems

This geometry video tutorial provides a basic introduction into triangle congruence theorems. It explains how to prove if two triangles are congruent using the SSS, SAS, ASA, and AAS postulate using two column proofs. Here is a list of topics contained in the statements and reasons of the two column proofs: Definition of midpoints, reflexive property, congruent angles, perpendicular lines, right angles, vertical angles, supplements of congruent angles, angle bisectors, triangles in circles, overlapping triangles, addition property of equality, segment addition, definition of congruent segments, and segment trisectors. This video contains plenty of examples and practice problems.

2 Column Proofs of Congruent Segments:
   • Two Column Proofs of Congruent Segments - ...  

2 Column Proofs of Angles:
   • Geometry, Two Column Proofs of Angles - Ad...  

Triangle Congruence - SSS, SAS, ASA:
   • Triangle Congruence Theorems, Two Column P...  

CPCTC - 2 Column Proofs With Triangles:
   • CPCTC Geometry Proofs Made Easy, Triangle ...  

Median of a Triangle Formula:
   • Median of a Triangle Formula, Example Prob...  

Altitude of a Triangle - Orthocenter:
   • Altitude of a Triangle - Finding The Ortho...  

_____________________________________
Triangles, Medians, & Altitudes - Proofs:
   • Two Column Proofs - Triangles, Medians and...  

2 Column Proofs - Isosceles Triangles:
   • Geometry Proofs - Isosceles Triangles - SA...  

Angle Side Theorem - 2 Column Proofs:
   • Angle Side / Base-Angle Theorem - Two Colu...  

Hypotenuse Leg Theorem - HL Postulate:
   • Hypotenuse Leg Theorem - HL Postulate - Tw...  

Detour Proofs - Double Triangle Congruence:
   • Detour Proofs - Double Triangle Congruence  

Missing Diagrams - 2 Column Proofs:
   • Missing Diagrams With Two Column Proofs  

_______________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
  / collections