Indirect Proofs, Practice Problems, Two Column Proofs - Geometry

This geometry video tutorial provides a basic introduction into indirect proofs. You need to assume the negation of the conclusion or the statement you're trying to prove. This video contains plenty of examples and practice problems of solving indirect proofs with two column proofs.

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

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

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

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

The Midpoint Formula:
   • Midpoint Formula  

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

Right Angle Theorem - SSS & SAS:
   • Right Angle Theorem - SSS & AAS - Two...  

Perpendicular Bisector Theorem:
   • Perpendicular Bisector of a Line Segm...  

Altitude, Median, Midpoint & P. Bisector:
   • Altitudes, Medians, Midpoints, Angle ...  

Parallel & Perpendicular Lines - Slope:
   • Finding The Slope Given Two Points - ...  

__________________________________
Proving Parallel Lines With Proofs:
   • Proving Parallel Lines With Two Colum...  

The Exterior Angle Theorem:
   • Exterior Angle Theorem For Triangles,...  

Exterior Angle Inequality Theorem:
   • Exterior Angle Inequality Theorem Wit...  

Polygons:
   • Polygons  

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

Full-Length Videos and Worksheets:
  / collections