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Geometry, Concurrent Lines, Theorems and Problems
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Concurrent Lines - Table of Content
- Page 1
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Clawson Point.
Orthic and Extangents Triangles, Concurrent lines. |
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Kosnita's Theorem.
Circumcenters, Concurrent lines. |
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Fermat Point.
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Vecten Outer Point.
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Brianchon's Theorem in a Circumscribed Hexagon. |
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Brianchon Corollary, Circumscribed Hexagon, Concurrency lines. |
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Isogonic-Jacobi
Theorem
Using TracenPoche Dynamic Geometry Software |
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Geometry
Problem 1498.
Intersecting Circles, Diameter, Common Chord, Secant, Cyclic Quadrilateral, Concurrent Lines, Concyclic and Collinear Points. |
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Dynamic Geometry 1478.
Cyclocevian, Reuschle-Terquem Theorem, Concurrent Cevians, Triangle, Circumcircle, Secant line, Step-by-step Illustration. GeoGebra,
iPad. |
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Dynamic Geometry 1473.
Kosnita's Theorem, Triangle, Four Circumcenters, Concurrent Line, Step-by-step Illustration. |
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Dynamic Geometry 1471.
Equilateral Triangle, Inside/Outside Point, Incenters, Tangency Points, Concurrent Lines, Step-by-step Illustration. |
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Dynamic Geometry 1451.
Orthopole of a Line. Step-by-step
illustration using GeoGebra. |
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Geometry Problem 1425. Two Squares, Collinear Points, Concurrent Lines. |
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Geometry Problem 1400. Triangle with three rectangles on the sides, Perpendicular Bisectors, Concurrency. |
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Geometry Problem 1396. Triangle with three rectangles on the sides, Vertices, Perpendicular lines, Concurrency. |
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Geometry Problem 1395. Triangle with three rectangles on the sides, Midpoints, Perpendicular lines, Concurrency. |
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Geometry Problem 1394. Three Circles and Three Pair of Common Internal Tangents, Concurrency. |
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Geometry Problem 1301.
Arbelos, Semicircles, Diameters, Circle, Incircle, Incenter, Square, Midpoint, Concurrency. |
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Geometry Problem 1300.
Arbelos, Semicircles, Diameters, Circle, Incircle, Tangent, Perpendicular, Concurrent Lines. |
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Geometry Problem 1293.
Triangle, Altitudes, Two Squares, Center, Concurrent Lines, Midpoint. |
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Geometry Problem 1289.
Triangle, Cevian, Concurrency, Measurement, Metric Relations. |
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Geometry Problem 1264.
Triangle, Exterior Angle Bisector, Circumcircle, Circle, Perpendicular, 90 Degrees, Concurrent Lines. |
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Geometry Problem 1260.
Triangle, Internal Angle Bisector, Circumcircle, Circle, Perpendicular, 90 Degrees, Concurrent Lines. |
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Geometry Problem 1253.
Triangle, Orthocenter, Circle, Circumcircle, Altitude, Perpendicular, 90 Degree, Concurrency. |
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Geometry Problem 1242.
Quadrilateral, Four Interior and Exterior Angle Bisectors, Collinearity, Concurrent Lines. Mobile Apps. |
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Geometry Problem 1237
IMO 2016, Problem 1, Triangle, Congruence, Parallel Lines, Midpoint, Concurrency. |
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Geometry Problem 1235
Triangle, Cevians, Concurrency, Circle, Circumcircle. |
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Geometry Problem 1212
Equilateral Triangle, Equilateral Hexagon, Concurrent Lines. |
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Geometry Problem 1184
Right Triangle, Square, Inscribed Circle, Tangent, Concurrent Lines. |
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Geometry Problem 1176
Cyclic Quadrilateral, Diagonals, Six Diameters, Circles, Collinear Points, Concurrent Lines. |
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Geometry Problem 1141.
Inscribed Pentagon, Circle, Triangle, Congruence, Midpoint, Concurrency. |
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Geometry Problem 1139.
Triangle, Circumcircle, Angle Bisector, Parallel Lines, 90 Degrees, Concurrent Lines. |
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Geometry Problem
1088.
Triangles, Perpendicular, Concurrent Lines. |
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Geometry Problem
1047.
Parallelogram, Parallel Lines, Concurrent Lines, Diagonals. |
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Geometry Problem
1012.
Equilateral Triangle, Incenters, Inscribed Circles, Perpendicular, Concurrent Lines. |
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Geometry Problem
1007.
Hexagon, Midpoint, Triangle, Median, Centroid, Concurrency. |
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Geometry Problem
1004.
Triangle with Squares, Perpendicular Bisectors, Concurrent Lines. |
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Geometry Problem 994.
Trapezoid, Midpoints of the bases, Concurrent Lines. |
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Geometry Problem 981.
Triangle, Concurrent Cevians, Midpoints, Area, Hexagon. |
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Geometry Problem 979.
Triangle, Cevian, Angle Bisector, Concurrency, 90 Degrees, Perpendicular. |
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Geometry Problem 974.
'Begonia Theorem', Cevian Triangle, Reflection of a point in a line, Concurrency of Lines. GeoGebra, HTML5 Animation for Tablets. |
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Geometry Problem 945.
Triangle, Concurrent Lines, Cevians, Perpendicular, Angle Bisector. |
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Geometry Problem 929.
Triangle, Orthocenter, Circumcircle, Reflection, Concurrency.
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Geometry Problem 928.
Triangle, Midpoint, Median, Cevian, Concurrency, Area.
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Excenter. Index.
Concurrent angle bisectors
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Circumcenter. Index.
Concurrent perpendicular bisectors.
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Orthocenter
Index.
Concurrent altitudes.
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Centroid /Barycenter. Index.
Concurrent medians. |
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Triangle Centers.
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Triangle,
Medians, Six Circumcenters Concyclic.
Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
Concurrent medians.. |
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Trapezoid,
Triangle, Diagonals, Midpoints.
Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
Concurrent lines. |
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Triangle
and Squares Theorem 1: with Interactive Geometry Software
Step-by-Step construction, Manipulation, and animation.
Concurrent lines. |
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Gergonne's Theorem:
Triangle and Concurrent Cevians. |
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Taylor Circle Theorem Using TracenPoche Dynamic Software
Step-by-Step construction, Manipulation, and animation.
Henry Martyn Taylor and the blind student of mathematics
Concurrent altitudes. |
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Interactive Orthopole of
a Triangle: Using TracenPoche Dynamic
Geometry Software, Online
Step-by-Step construction, manipulation, and animation.
Concurrent perpendiculars. |
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Schiffler Point: Concurrent Four Euler Lines with interactive
animation and manipulation.
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Van Aubel's Theorem II:
Triangle and Concurrent Cevians.
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Incenter, Excenter, Incircle, Excircle Using TracenPoche Dynamic
Software
Step-by-Step construction, Manipulation, and animation.
Concurrent angle bisectors. |
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Three Tangent Circles Theorem Using TracenPoche Dynamic Software
Step-by-Step construction, Manipulation, and animation.
Concurrent common tangent lines |
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Three Circles Theorem
Using TracenPoche Dynamic Software.
Concurrent common chords |
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Symmedian (Lemoine)
Point
Triangle Center |
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Nagel Point
Theorem. Proof.
Concurren lines. |
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Gergonne Point Theorem. Concurrency.
Interactive proof with animation.
Key concept: Ceva's Theorem.
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The Bevan Point The
circumcenter of the excentral triangle. Illustration with animation.
Concurrent perpendiculars.
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Ceva's Theorem.
Concurrency. Interactive proof with animation. Key concept:
Menelaus Theorem.
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Post a comment | Email | by Antonio Gutierrez
Last updated:
Mar 24, 2022
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