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 Segmen...  

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

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

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

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

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

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

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

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

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

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

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

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