Angle Side / Base-Angle Theorem - Two Column Proofs

This geometry video tutorial explains how to use the angle side theorem also known as the base-angle theorem in two column proofs. The angle side theorem states that if two sides of a triangle are congruent, the angles are congruent and vice versa. This theorem typically applies to an isosceles triangle. This video contains plenty of geometry practice problems that include solving equations with x and inequalities with restrictions on x.

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...  

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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