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Perpendicular Lines, Theorems
and Problems - Table of Content (10)
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![Perpendicular Lines Index](perpendicular_lines_index_1.jpg) |
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![Problem 886](../school-college/p886-right-triangle-incenter-bisector-concyclic-geogebra-html5-ipad-1.jpg) |
Geometry Problem 886
Right Triangle, Incenter, Angle Bisector, Perpendicular, 45 Degrees, Concyclic Points, Isosceles Right Triangle. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). |
![Pythagoras curiosity. Online tutoring.](../pythagoras/pythagoras_curiosity_17.jpg) |
Geometry Problem 884: The Pythagorean Curiosity
Right
Triangles and squares, fifteen conclusions. |
![Geometry Problem 880](../school-college/p880-triangle-midpoint-perpendicular-hexagon-area-parallelogram-1.jpg) |
Geometry Problem 880
Triangle, Midpoints, Sides, Perpendiculars, Hexagon, Area. |
![Geometry Problem 877](../school-college/p878-square-inscribed-circle-quadrant-metric-relation-1.jpg) |
Geometry Problem 878
Square, Inscribed Circle, Quadrant, Center, Perpendicular, Metric Relations. |
![Geometry Problem 876](../school-college/p876-equilateral-triangle-perpendicular-equal-area-1.jpg) |
Geometry Problem 876
Equilateral Triangle, any Point, Perpendicular, Right Triangle Area, Sum of Areas. |
![Geometry problem 868, Cyclic Quadrilateral, Circle, Five Rectangles, Four Centers, Congruence](../school-college/p868-cyclic-quadrilateral-five-rectangles-centers-1.jpg) |
Geometry Problem 868
Cyclic Quadrilateral, Circle, Five Rectangles, Four Centers, Congruence. |
![Geometry problem 867, Isosceles Triangle, Median, Perpendicular, Angle, Congruence](../school-college/p867-triangle-isosceles-angles-congruence-1.jpg) |
Geometry Problem 867
Isosceles Triangle, Median, Perpendicular, Angle, Congruence. |
![Geometry problem 866, Cyclic Quadrilateral, Circle, Rectangle, Center, Congruence, 90 Degrees](../school-college/p866-cyclic-quadrilateral-rectangle-center-90-degrees-1.jpg) |
Geometry Problem 866
Cyclic Quadrilateral, Circle, Rectangle, Center, Congruence, 90 Degrees. |
![Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity](../school-college/p845-triangle-centroid-four-circumcenter-perpendicular-median-similarity-1.jpg) |
Geometry Problem 845
Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity. |
![Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity](../school-college/p844-triangle-centroid-four-circumcenter-perpendicular-median-similarity-1.jpg) |
Geometry Problem 844
Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity. |
![Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Parallel, Congruence, Similarity](../school-college/p843-triangle-centroid-four-circumcenter-perpendicular-parallel-similarity-1.jpg) |
Geometry Problem 843
Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Parallel, Congruence, Similarity. |
![Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity](../school-college/p842-triangle-centroid-four-circumcenter-perpendicular-similarity-1.jpg) |
Geometry Problem 842
Triangle, Medians, Centroid, Four Circumcenters, Perpendicular, Congruence, Similarity. |
![Triangle, Medians, Centroid, Circumcenters, Perpendicular, Congruence, Similarity](../school-college/p841-triangle-centroid-circumcenter-perpendicular-similarity-1.jpg) |
Geometry Problem 841
Triangle, Medians, Centroid, Circumcenters, Perpendicular, Congruence, Similarity. |
![Parallelogram, Perpendicular, Diagonal, Metric Relations, Similarity](../school-college/p840-parallelogram-perpenddicular-sides-diagonal-1.jpg) |
Geometry Problem 840
Parallelogram, Perpendicular, Diagonal, Metric Relations, Similarity. |
![Problem 839: Parallelogram, Perpendicular, Diagonal, Metric Relations](../school-college/p839-parallelogram-perpendicular-sides-projection-1.jpg) |
Geometry Problem 839
Problem 839: Parallelogram, Perpendicular, Diagonal, Metric Relations. |
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