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![Machu Picchu, Geometry Theorems and Problems, Online Education](../machu_picchu_h1_910x120.jpg)
Perpendicular Lines, Theorems
and Problems - Table of Content (9)
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![Perpendicular Lines Index](perpendicular_lines_index_1.jpg) |
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![Problem 926](../school-college/p926-equilateral-triangle-midpoint-perpendicular-metric-relation-1.jpg) |
Geometry Problem 926.
Two Equilateral Triangles, Midpoint, Perpendicular, Metric Relations.
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![Problem 924](../school-college/p924-quadrilateral-perpendicular-circle-chord-tangent-midpoint-metric-relation-1.jpg) |
Geometry Problem 924.
Quadrilateral, Diagonal, Perpendicular, Circle, Tangent, Midpoint, Metric Relations.
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![Problem 919](../school-college/p919-rhombus-perpendicular-parallel-congruence-1.jpg) |
Geometry Problem 919.
Rhombus, Triangle, Perpendicular, 90 Degrees, Congruence.
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![Problem 918](../school-college/p918-infographic-triangle-incenter-perpendicular-metric-relations-1.jpg) |
Geometry Problem 918.
Triangle, Incenter, Incircle, Angle Bisector, Perpendicular, Metric Relations.
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![Problem 917](../school-college/p917-infographic-triangle-congruence-midpoint-perpendicular-angle-bisector-1.jpg) |
Geometry Problem 917.
Triangle, Congruence, Midpoints, Angle Bisector, Perpendicular.
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![Problem 912](../school-college/p912-right-triangle-double-triple-angle-perpendicular-1.jpg) |
Geometry Problem 912.
Right Triangle, Double Angle, Triple Angle, Perpendicular Lines.
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![Problem 906 Bicentric Quadrilateral, Incircle, Circumcircle, Circunscribed, Inscribed, Perpendicular](../school-college/p906-bicentric-quadrilateral-chord-perpendicular-1.jpg) |
Geometry Problem 906.
Bicentric Quadrilateral, Incircle, Circumcircle, Circunscribed, Inscribed, Perpendicular.
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![Geometry Problem 889](../school-college/p889-carnot-theorem-acute-triangle-inradius-circumradius-html5-ipad-1.jpg) |
Geometry Problem 889
Carnot's Theorem in an acute triangle, Circumcenter, Circumradius, Inradius. GeoGebra, HTML5 Animation for Tablets. |
![Problem 887](../school-college/p887-triangle-altitude-bisector-midpoint-concyclic-html5-ipad-1.jpg) |
Geometry Problem 887
Triangle, Altitude, Angle Bisector, Perpendicular, Midpoint, Concyclic Points. GeoGebra, HTML5 Animation for Tablets. |
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