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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 (16)
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![Perpendicular Lines Index](perpendicular_lines_index_1.jpg) |
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![Problem 273 Triangle and Squares](../problem/p273_triangle_square_17.jpg) |
Proposed Problem 273.
Triangle, Perpendicular lines, Parallel lines, Area of Squares. |
![Rectangle, Isosceles Right Triangle, Square, Area](../problem/p252_rectangle_area_17.jpg) |
Proposed Problem 252.
Rectangle, isosceles right triangle, Perpendicular lines, square, area.
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![Elearning 251: Parallelogram](../problem/p251_parallelogram_area_17.jpg) |
Proposed Problem 251.
Parallelogram, sides, diagonals, squares, Perpendicular lines, areas.
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![Eight Point Circle Theorem. TracenPoche](eight_point_circle_17.jpg) |
Eight-Point Circle Theorem
Step-by-Step construction, Manipulation, and animation.
TracenPoche Interactive Geometry Software
Perpendicular diagonals. |
![Interactive Simson Line](interactive_simson_line_17.jpg) |
Simson Line.
using Tracenpoche Interactive Geometry Software.
Step-by-Step construction, Manipulation, and animation.
Perpendicular diagonals. |
![Triangle: Incircle, Perpendicular, Angle Bisector, TracenPoche](triangle_incircle_perpendic.jpg) |
Triangle: Incircle, Perpendicular, Angle Bisector.
Using Tracenpoche Interactive Geometry Software.
Step-by-Step construction, Manipulation, and animation
Perpendicular diagonals. |
![Orthopole of a Triangle](orthopole_triangle_170.jpg) |
Orthopole of a Triangle
Using TracenPoche Dynamic Geometry Software
Perpendicular diagonals. |
![Quadrilateral, midpoints](http://gogeometry.com/
problem/p237_quadrilateral_17.jpg) |
Proposed Problem 237. Quadrilateral, Midpoints, Exterior line,
Perpendicular lines, Parallel lines.
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![Quadrilateral, midpoints](http://gogeometry.com/
problem/p236_quadrilateral_17.jpg) |
Proposed Problem 236. Quadrilateral, Midpoints, Exterior line,
Perpendicular lines, Parallel lines.
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![Problem about Parallelogram and transversal](http://gogeometry.com/
problem/p235_parallelogram_17.jpg) |
Proposed Problem 235. Parallelogram, Transversal line, Perpendicular
lines, Parallel lines.
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![Problem 233: Parallelogram](http://gogeometry.com/
problem/p234_parallelogram_17.jpg) |
Proposed Problem 234. Parallelogram, Line through a vertex,
Perpendicular lines, Parallel lines.
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![Elearn 232: Parallelogram](http://gogeometry.com/
problem/p233_parallelogram_17.jpg) |
Proposed Problem 233. Parallelogram, Exterior line, Perpendicular
lines, Parallel lines.
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![Elearn 232: Parallelogram, perpendicular lines](http://gogeometry.com/
problem/p232_parallelogram_problem_.jpg) |
Proposed Problem 232. Parallelogram, Line through a vertex,
Perpendicular lines.
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![Elearn 231: Triangle, Midpoint](http://gogeometry.com/
problem/p231_triangle_midpoint_17.jpg) |
Proposed Problem 231. Triangle, Midpoints, Transversal,
Perpendicular lines, Parallel lines.
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