Olympiad Geometry
122 videos • 51,284 views • by Michael Greenberg
1
LIVESTREAM GEO #73A: From a Beautiful Problem Collection by Jean Louis Ayme!
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2
LIVESTREAM GEO #29B: Some Highly "Conceptual" Proofs
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3
Olympiad Geometry Problem #112: 1000 Subscriber Special - A True Russian Beauty!
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4
LIVESTREAM GEO#24A: We've Done China Northern, China South Eastern, and now China Western!
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5
Olympiad Geometry Problem #111: An Awesome Vietnamese Problem from Evan Chen's Channel!
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6
Olympiad Geometry Problem #110: Similar to Video #89 but Much Harder!
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7
Olympiad Geometry Problem #109: Another Present from Santa!
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8
Olympiad Geometry Problem #108: Christmas Special - But a Month and a Half Later!
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9
Olympiad Geometry Problem #107: USA AIME 2016 #15
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10
Olympiad Geometry Problem #106: USA AIME II 2018 #14
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11
Olympiad Geometry Problem #105: USA AIME #15 - Solved Two Different Ways!
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12
LIVESTREAM GEO #5B: A Mighty Strong Finish
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13
LIVESTREAM GEO #5A: Lots and Lots of Circles!
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14
Olympiad Geometry Problem #104: Sharkydevil Magic - and 500 AWESOME subscribers!!!
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15
LIVESTREAM GEO #4B: The hard one at the end!
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16
LIVESTREAM GEO #4A: Synergy At Its Best
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17
Olympiad Geometry Problem #103: Double Segment, Perpendiculars, Tangent
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18
LIVESTREAM GEO #3B: An absurdly complicated angle chase!
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19
LIVESTREAM GEO #3A: A supreme collaboration!
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20
Olympiad Geometry Problem #102: Orthocenter, Equal Segments, Bisection
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21
LIVESTREAM GEO #2B: A Four Problem Marathon
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22
LIVESTREAM GEO #2A: The Problem We Couldn't Solve!
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23
Olympiad Geometry Problem #101: Orthocenter Lies on Incircle
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24
LIVESTREAM GEO #1!!! An epic team effort!
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25
Thank You All! - 100th Problem Update
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26
Olympiad Geometry Problem #100: Circumcenter Perpendiculars Cyclic Quad
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27
Olympiad Geometry Problem #99: Cyclic Quad, Equal Segment, Parallel
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28
Olympiad Geometry Problem #98: Circumcenter, Midpoints, Equal Angle
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29
Olympiad Geometry Problem #97: Incircle, Tangency Points, Concurrence
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30
Olympiad Geometry Problem #96: Spiral Similarities
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31
Olympiad Geometry Problem #95: IMO 2010 #2
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32
Olympiad Geometry Problem #94: Diameters, Angle Bisector, Cyclic Quad
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33
Olympiad Geometry Problem #93: Two Isosceles Triangles, Circumcircle, Perpendicular
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34
Olympiad Geometry Problem #92: Incenter, Reflection, Cyclic Quad
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35
Olympiad Geometry Problem #91: Two Perpendiculars, Midpoint, Equal Segments
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36
Olympiad Geometry Problem #90: Incircle, Midpoint, Equal Angles
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37
Olympiad Geometry Problem #89: Reflections, Tangents, Perpendicular
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38
Olympiad Geometry Problem #87: Altitudes, Circumcircles, Parallel
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39
Olympiad Geometry Problem #86: IMO Shortlist 2019 G2
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40
Olympiad Geometry Problem #85: Cyclic Quad, Circumcircles, Perpendicular
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41
Olympiad Geometry Problem #84: IMO Shortlist 2012 G6
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42
Olympiad Geometry Problem #83: Tangency, Circumcircle, Bisection
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43
Olympiad Geometry Problem #82: Orthocenter, Circumcircles, Perpendicular
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44
Olympiad Geometry Problem #81: Altitude, Two Circles, Concurrence
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45
Olympiad Geometry Problem #80: Incircle, Reflections, Perpendicular
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46
Olympiad Geometry Problem #79: Incenter, Tangency Points, Common Circumcenters
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47
Olympiad Geometry Problem #78: Incenter, Midpoint, Parallel
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48
Olympiad Geometry Problem #77: Incenter, Perpendiculars, Parallel
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49
Olympiad Geometry Problem #76: Poles and Polars Part 2
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50
Olympiad Geometry Problem #74: Incircle, Equal Segments, Right Angle
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51
Olympiad Geometry Problem #72: Tangent, Isoceles Triangles, Collinear
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52
Olympiad Geometry Problem #71: Isogonal Line Lemma
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53
Olympiad Geometry Problem #69: Tangents, Secant, Perpendicular
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54
Olympiad Geometry Problem #68: Orthocenters, Midpoint, Cyclic Quad
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55
Olympiad Geometry Problem #67: IMO Shortlist 2017 G4
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56
Olympiad Geometry Problem #66: Incenter, Midpoint, Perpendiculars
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57
Olympiad Geometry Problem #65: IM Lemma
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58
Olympiad Geometry Problem #64: IMO Shortlist 2017 G1
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59
Olympiad Geometry Problem #63: Incenter, Diameter, Equal Angles
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60
Olympiad Geometry Problem #62: Parallel, Tangents, Cyclic Quad
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61
Olympiad Geometry Problem #61: Angle Bisector, Perpendicular Bisector Cyclic Quad
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62
Olympiad Geometry Problem #60: Angle Bisector, Parallel, Tangent
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63
Olympiad Geometry Problem #59: Altitudes, Diameters, Midpoint
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64
Olympiad Geometry Problem #58: IMO 2013 #4
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65
Olympiad Geometry Problem #57: Altitudes, Midpoint, Circumcircle
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66
Olympiad Geometry Problem #56: 30 Degree Angle, Find Length
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67
Olympiad Geometry Problem #55: Projective Geometry Part 2
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68
Olympiad Geometry Problem #54: Projective Geometry Part 1
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69
Olympiad Geometry Problem #53: Circles, Tangents, Midpoint
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70
Olympiad Geometry Problem #52: Symmedian Theorem
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71
Olympiad Geometry Problem #51: Pascal's Theorem
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72
Olympiad Geometry Problem #50: Incenter, Midpoint, Parallel
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73
Olympiad Geometry Problem #49: Cyclic Quad, Perpendiculars
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74
Olympiad Geometry Problem #48: Gauss Line
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75
Olympiad Geometry Problem #47: Heron's Formula
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76
Olympiad Geometry Problem #46: Circumcenter, Parallel, Orthocenter
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77
Olympiad Geometry Problem #45: Parallelogram, Equal Segments, Angle Bisector
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78
Olympiad Geometry Problem #44: Two Circles, Common Tangent, Equal Angles
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79
Olympiad Geometry Problem #43: IMO 2017 #4
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80
Olympiad Geometry Problem #42: Isosceles Triangle, Median, Altitude, Midpoint
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81
Olympiad Geometry Problem #42: Isosceles Triangle, Median, Altitude, Midpoint
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82
Olympiad Geometry Problem #41: Mixtilinear Incircles
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83
Olympiad Geometry Problem #40: IMO Shortlist 2003 G4 - Four Circles
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84
Olympiad Geometry Problem #39: Circumcenter, Incenter, Double Segment
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85
Olympiad Geometry Problem #38: IMO Shortlist 2012 G4
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86
Olympiad Geometry Problem #37: IMO 2018 #1
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87
Olympiad Geometry Problem #36: Cyclic Quad, Incenters, Isosceles
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88
Olympiad Geometry Problem #35: Angle Bisector, Perpendiculars, Tangency
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89
Olympiad Geometry Problem #34: IMO Shortlist 2002 G7
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90
Olympiad Geometry Problem #33: Incenter, Angle Bisector, Midpoint
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91
Olympiad Geometry Problem #32: IMO 2019 #6
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92
Olympiad Geometry Problem #31: Two Angle Bisectors, Equal Angles
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93
Olympiad Geometry Problem #30: Incenter, Equal Segments, Perpendicular
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94
Olympiad Geometry Problem #29: Incenter, Perpendicular, Equal Angles
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95
Olympiad Geometry Problem #28: Isosceles Triangle, Circumcircle, Midpoint
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96
Olympiad Geometry Problem #26: Orthocenter, Circumcircle, Angle Bisectors
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97
Olympiad Geometry Problem #25: Midpoint, Perpendiculars, Parallels
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98
Olympiad Geometry Problem #24: Perpendiculars, Circumcircles, Concurrence
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99
Olympiad Geometry Problem #23: Orthocenter, Tangent, Equal Segments
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100
Olympiad Geometry Problem #22: Perpendiculars, Parallel, Cyclic
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101
Olympiad Geometry Problem #21: Circumcircle, Connecting Points, Parallel
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102
Olympiad Geometry Problem #20: Orthocenter, Angle Bisector, Tangent
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103
Olympiad Geometry Problem #19: Angle Bisector, Perpendiculars, Midpoint
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104
Olympiad Geometry Problem #18: Altitudes, Circumcircle, Equal Segments
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105
Olympiad Geometry Problem #17: Blanchett's Theorem
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106
Olympiad Geometry Problem #16: 60 Degrees, Bisector, Reflection
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107
Olympiad Geometry Problem #15: Perpendiculars, Midpoint, Reflection
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108
Olympiad Geometry Problem #14: Outer Butterfly Theorem
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109
Olympiad Geometry Problem #13: Diameter, Tangent, Equal Segments
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110
Olympiad Geometry Problem #12: Isosceles Triangle, Angle Bisector, Midpoint
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111
Olympiad Geometry Problem #11: Ceva's Theorem
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112
Olympiad Geometry Problem #8: Perpendiculars, Midpoints, Equal Angles
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113
Olympiad Geometry Problem #10: Isosceles Triangle, Midpoints, Perpendiculars
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114
Olympiad Geometry Problem #9: Archimedes' Theorem
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115
Olympiad Geometry Problem #5: H-M Theorem
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116
Olympiad Geometry Problem #6: Isosceles Triangle, Parallels, Perpendicular
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117
Olympiad Geometry Problem #7: Isosceles Triangle, Midpoint, Equal Angles
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118
Intro to My Olympiad Geometry Channel
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119
Olympiad Geometry Problem #2: Circle, Tangents, Midpoint, Perpendicular
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120
Olympiad Geometry Problem #1: Angle Bisector, Midpoint of Side, Perpendicular, Collinear Points
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121
Olympiad Geometry Problem #3: Right Triangle, Perpendiculars, Equal Angles
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122
Olympiad Geometry Problem #4: Butterfly Theorem
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