![Pythagoras and Right Triangles and Problems](../machu_picchu_h1_910.jpg)
Plane Geometry: Pythagoras, Right Triangle,
Metric Relations
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Right Triangles Theorems and Problems Index
3
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![](lunes_hippocrates_04_170.jpg) |
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![Classical Theorems](../geometry/classical_theorems_17.jpg) |
Classical Theorems.
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![Tangent Circles, Chords, Perpendiculars](../problem/p437_circle_chord_1.jpg) |
Problem 437.
Tangent Circles, Diameter, Chord, Perpendicular, Congruence, Measurement. |
![Tangent Circles, Chords, Perpendiculars](../problem/p436_circle_chord_1.jpg) |
Problem 436.
Tangent Circles, Diameter, Chord, Perpendicular, Congruence, Measurement. |
![Inscribed and Circumscribed regular Pentagon, Areas](../problem/p430_regular_pentagon_17.jpg) |
Problem 430.
Circumscribed and Inscribed Regular Pentagon, Perpendicular, Areas. |
![Regular pentagon](../problem/p429_regular_pentagon_17.jpg) |
Problem 429.
Circumscribed and Inscribed Regular Pentagon, Perpendicular, Measurement.
Pythagoras |
![Right triangle, Congruence, Angles](../problem/p363_right_triangle_17.jpg) |
Problem 363.
Right triangle, Congruence, Angles. |
![Elearning 317 Right triangle](../problem/p317_triangle_squares_17.jpg) |
Problem
317.
Right triangle and Inscribed Squares. |
![Triangle and angle bisector of 90 degrees](../problem/p303_triangle_90_degree_17.jpg) |
Problem
303.
Triangle, Angle bisector of 90 degrees. |
![Right Triangle Circumcenter, Excenter](../problem/p294_triangle_excenter_17.jpg) |
Problem 294.
Right triangle, Circumcenter, Excenter, Hypotenuse, Perpendicular. |
![Sagitta Problem](../problem/p275_right_triangle_sagitta.jpg) |
Problem
275.
Right Triangle, Circumcircle, Sagitta, Inradius. |
![Square, Midpoint, Congruence, Pythagoras](../problem/p239_square_midpoint_17.jpg) |
Problem
239. Square, Midpoints, Lines, Congruence, Pythagoras.
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![Right triangle, inradius, altitude, arithmetic mean](../problem/p220_right_triangle_17.jpg) |
Problem
220. Right Triangle, Altitude, Angle Bisector, Distance, Arithmetic Mean.
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![Problem 207: Hypotenuse](../problem/p207_right_triangle_hypoten.jpg) |
Problem
207. Right Triangle, Hypotenuse, Inradius, Exradius relative to the hypotenuse. |
![Elearn 206](../problem/p206_right_triangle_area_17.jpg) |
Problem 206. Area of a Right Triangle, Inradius, and Exradius relative to the hypotenuse. |
![Right triangle area](../problem/p205_right_triangle_area_17.jpg) |
Problem
205. Right Triangle Area, Exradii relatives to legs or catheti. |
![Elearn 204](../problem/p204_right_triangle_circle_.jpg) |
Problem
204. Right Triangle, Incircle, Excircles, Inradius, Exradii. |
![Problem 203](../problem/p203_right_triangle_circle_.jpg) |
Problem
203. Right Triangle, Excircles, Exradii, Hypotenuse. |
![Problem 202 Right triangle, excircles](../problem/p202_right_triangle_circle_.jpg) |
Problem
202. Right Triangle, Incirle, Excircles relatives to catheti, Points of Tangency, Exradius, Semiperimeter. |
![Elearn 201](../problem/p201_right_triangle_17.jpg) |
Problem
201. Right Triangle, Excircles, Points of Tangency, Exradius, Semiperimeter. |
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Email | By Antonio Gutierrez
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