This geometry video tutorial focuses on writing two column proofs based on missing diagrams. This video gives you two examples where you have to convert a sentence into a diagram and prove a statement. Examples & practice problems include isosceles triangles, midpoints, medians, altitudes and angle bisectors. Triangle Congruence - SSS, SAS, ASA: https://www.youtube.com/watch?v=jWHOF6cFbpw CPCTC - 2 Column Proofs With Triangles: https://www.youtube.com/watch?v=eq1frp_ZyP8 Hypotenuse Leg Theorem - HL Postulate: https://www.youtube.com/watch?v=DKSTjS0n3mY Detour Proofs - Double Triangle Congruence: https://www.youtube.com/watch?v=1HOrB5yvEl0 The Midpoint Formula: https://www.youtube.com/watch?v=pzDfd8NXRXk ________________________________ Right Angle Theorem - SSS & SAS: https://www.youtube.com/watch?v=FRbFMp8mg1s Perpendicular Bisector Theorem: https://www.youtube.com/watch?v=xyNBZuUjmSE Altitude, Median, Midpoint & P. Bisector: https://www.youtube.com/watch?v=SyzkgBjXtIs Parallel & Perpendicular Lines - Slope: https://www.youtube.com/watch?v=bq3fKZVTflU __________________________________ Indirect Proofs - Example Problems: https://www.youtube.com/watch?v=GawWGpnjy1c Proving Parallel Lines With Proofs: https://www.youtube.com/watch?v=0eYzPVgylO8 The Exterior Angle Theorem: https://www.youtube.com/watch?v=ndqxxAUDF5Y Exterior Angle Inequality Theorem: https://www.youtube.com/watch?v=rfMZwrq-wL8 Polygons: https://www.youtube.com/watch?v=E_-3ulbtcLk _______________________________________ Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections