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# Famous Theorems

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theorem00 The concept of "Famous Theorems"
theorem01 Theorem of Morley Exproring feature Content of theorem theorem02 Mid points theorem Content of theorem Understaing with track Understanding with measurement

Let's move point A. What do you find? L...

Clue for proof Related figure theorem03 Theorem of incribed angles Special case Combination of special cases Understanding with measurement Understanding with the other cases theorem04 Pythagolean theorem Conjecture Measurement (Area of squares) measurement (Length of sides)  Euclidean additional line and "which case the relationship does not exist" Congruence of triangles theorem05 Pappus' theorem theorem06 方べきの定理 Transformation and conjecture Measurement and conjecture Specialize and conjecture Confirm Triangle and proof (1) Generalization and clasification Triangle and proof (2) Triangle and proof (3) theorem07 Simson's theorem What is the feature Confirm the different cases See as the relationship between three points See as the transformation of triangle See as the change of the area of triangle Maximum of the area of triangle Area of triangle and circumcenter Area of triangle and circle theorem08 Menelaus' theorem Observation and conjecture Observation and confirm Observation theorem09 Cheva's theorem Observation and conjecture Observation and confirm Observation theorem10 Desargues' theorem Observation and conjecture Secret of three points Relationship of three points Different cases theorem11 Euler line Observation and conjecture Observation and conjecture Observation and conjecture theorem12 Newton's theorem (Newton's line) Observation and conjecture Observation and conjecture theorem13 Newton's theorem Observation and conjecture Observation and conjecture theorem14 Pappus' theorem Observation and conjecture Observation and conjecture Observation and conjecture This is not enough theorem15 Pascal's theorem Observation and conjecture Observation and conjecture Observation and conjecture This is not enough theorem16 Feuerbach's theorem Four circles This circle Feature of circle (1): Three points circle Feature of circle (2): Three points circle Six points circle Nine points circle Forum of Gemetric Constructor by Y.Iijima