Geometry Spring Semester

Gary Rubinstein, Jan 28, 2019


  • 1. Visual Proof That The Square Root Of 2 Is Irrational By Infinite Descent
  • 2. Intro To Trig Less Special Right Triangles
  • 3. Archimedes Pi
  • 4. Area Of Regular Polygon
  • 5. Chords And Distance From Center
  • 6. Chords, Central Angles, and Arcs
  • 7. Thales Theorem
  • 8. Inscribed Angle Theorem
  • 9. Two Inscribed Angles
  • 10. Tangent Perpendicular To Radius
  • 11. Angle Formed By Tangent And Chord
  • 12. Angle Formed By Two Chords
  • 13. Angle Formed By Two Secants
  • 14. Angle Formed By A Secant And A Tangent
  • 15. Angle Formed By Two Tangents
  • 16. Tangent Tangent Segments
  • 17. Chord Chord Segment
  • 18. Tangent Secant Segments
  • 19. Secant Secant Segments
  • 20. Construct Perpendicular Bisector
  • 21. Construct Perpendicular From Point On Line
  • 22. Construct Perpendicular From Point Not On Line
  • 23. Construct Circle Through Three Points
  • 24. Copy Segment
  • 25. Construct Triangle With Three Given Sides
  • 26. Construct Angle Bisector
  • 27. Construct An Angle Congruent To A Given Angle
  • 28. Construct A Line Parallel To A Given Line Through A Given Point
  • 29. Combining Two Squares
  • 30. Divide Line Segment
  • 31. Squaring The Rectangle
  • 32. Centroid
  • 33. Construct Pentagon
  • 34. Slope Intercept Form
  • 35. Line Reflection
  • 36. Translation
  • 37. Rotation
  • 38. Dilation
  • 39. Euclid 12.7
  • 40. Volume of Sphere Proof
  • 41. Volume of a Sphere via Cavalieri's Principle
  • 42. Archimedes Volume of a Sphere
  • 43. Cone Unrolled
  • 44. Surface Of Revolution

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Visual Proof That The Square Root Of 2 Is Irrational By Infinite Descent

– Gary Rubinstein

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