Collinear Points, Theorems and
Problems - Table of Content 3
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![Collinear Points Index](collinear_points_index.jpg) |
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![Geometry problem 1291](../school-college/3/p1291-three-squares-midpoint-collinear-1.jpg) |
Geometry Problem 1291.
Three Squares, Collinear Vertices, Midpoint, Congruence. |
![Geometry problem 1280](../school-college/3/p1280-quadrilateral-perpendicular-diagonal-collinear-tutoring-1.jpg) |
Geometry Problem 1280.
Quadrilateral, Perpendicular Diagonals, Isosceles Right Triangles, 45 Degrees, Collinear Points. |
![Geometry problem 1255](../school-college/3/p1255-right-triangle-angle-3-4-5-collinear-1.jpg) |
Geometry Problem 1255.
Right Triangle,
Angle, 90 Degrees, Perpendicular, Collinear Points. |
![Geometry problem 1242](../school-college/3/p1242-quadrilateral-angle-bisector-collinearity-1.jpg) |
Geometry Problem 1242.
Quadrilateral, Four Interior and Exterior Angle Bisectors, Collinearity, Concurrent Lines. Mobile Apps. |
![Geometry problem 1232](../school-college/3/p1232-orthic-axis-triangle-altitude-collinear-1.jpg) |
Geometry Problem 1232
Triangle, Altitudes, Orthic Triangle, Collinearity, Orthic Axis. |
![Geometry problem 1221](../school-college/3/p1221-intersecting-circles-parallel-chord-tangent-collinear-1.jpg) |
Geometry Problem 1221
Intersecting Circles, Chord, Tangent, Parallel Chords, Collinear Points. |
![Geometry problem 1189](../school-college/2/p1189-circle-tangent-secant-chord-collinearity-1.jpg) |
Geometry Problem 1189
Circle, Tangent Line, Secant, Chord, Collinear Points. |
![Geometry problem 1176](../school-college/2/p1176-cyclic-quadrilateral-circle-diameter-collinear-concurrent-1.jpg) |
Geometry Problem 1176
Cyclic Quadrilateral, Diagonals, Six Diameters, Circles, Collinear Points, Concurrent Lines. |
![Geometry problem 1169](../school-college/2/p1169-ortholine-complete-quadrilateral-steiner-line-tutoring-1.jpg) |
Geometry Problem 1169
Complete Quadrilateral, Orthocenters of the Component Triangles, Collinear Points, Ortholine, Steiner-line, Orthocentric line. |
![Geometry problem 1167](../school-college/2/p1167-triangle-circumcircle-perpendicular-collinear-points-math-1.jpg) |
Geometry Problem 1167.
Triangle, Circle, Circumcircle, Perpendicular, 90 Degrees, Collinear Points. |
![Geometry problem 1143](../school-college/2/p1143-brain-geometry-triangle-circle-reflection-tangent-1.jpg) |
Geometry Problem 1143.
Triangle, Circumcircle, Tangent Line, Reflection of a Point over a Line, Tangent Circles, Collinear Points. |
![Geometry Problem 896](../school-college/p896-triangle-orthocenter-midpoint-circle-diameter-collinear-html5-ipad-1.jpg) |
Geometry Problem 896
Triangle, Orthocenter, Midpoint, Median, Intersecting
Circles, Diameter, Collinear Points.
GeoGebra, HTML5 Animation for Tablets |
![Geometry Problem 895](../school-college/p895-triangle-incircle-tangent-parallel-collinear-html5-ipad-1.jpg) |
Geometry Problem 895
Triangle, Incircle, Tangency Points, Parallel line,
Collinear Points.
GeoGebra, HTML5 Animation for Tablets |
![Geometry Problem 893](../school-college/p893-triangle-circumcenter-incenter-circle-collinear-html5-ipad-1.jpg) |
Geometry Problem 893
Triangle, Circumcircle, Incenter, Circle, Tangent, Collinear
Points.
GeoGebra, HTML5 Animation for Tablets |
![Geometry Problem 870: Triangle, Median, Three Squares, Centers, Vertices, Collinear Points, Midpoint](../school-college/p870-triangle-median-three-square-collinear-midpoint-1.jpg) |
Geometry Problem 870
Triangle, Median, Three Squares, Centers, Vertices, Collinear Points,
Midpoint. |
![Geometry Problem 869: Triangle, Median, Three Equilateral Triangles, Collinear Points, Midpoint](../school-college/p869-triangle-median-equilateral-collinear-midpoint-1.jpg) |
Geometry Problem 869
Triangle, Median, Three Equilateral Triangles, Collinear Points,
Midpoint. |
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Email | by Antonio Gutierrez
Last updated:
Dec 3, 2016
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