College Geometry Online, eLearning

Geometry: Concurrent Lines, Theorems and Problems


Concurrent Lines - Table of Content - Page 3

Concurrent lines, Index


Triangle, Orthocenter

Proposed Problem 393.
Triangle, Orthocenter, Circumcircles, Congruence, Collinear.

Triangle, Parallel, Concurrent lines

Proposed Problem 392.
Triangle, Parallel lines, Concurrent lines.

Triangle, Parallel, Collinear points

Proposed Problem 390.
Triangle, Parallel lines, Collinear points.
Concurrent lines.

Triangle, 120 degrees, angle bisectors

Proposed Problem 368.
Triangle, 120 degrees, Angle bisectors, Perpendicular.
Concurrent lines.

Equilateral triangle, circumcircle

Proposed Problem 366.
Scalene triangle, Circumcircle, Angles, 60 Degrees, Equilateral triangle.
Concurrent lines.

Geometry Problem: Equal circles, Tangents

Proposed Problem 345.
Equal circles, Tangents, Concurrent lines, Hexagon, Semiperimeter.

Elearning 324: Quadrilateral

Proposed Problem 324.
Quadrilateral with perpendicular diagonals, Concurrence.

Triangle, Altitude

Proposed Problem 319.
Triangle, Altitudes, Perpendiculars, Collinear points.
Concurrent lines.

Elearning 318

Proposed Problem 318.
A Scalene triangle, Altitudes, Collinear points.
Concurrent altitudes.

Triangle, Parallel, Congruence, Similarity

Proposed Problem 292.
Triangle, Parallel, Congruence, Similarity.

Problem 254: Triangle and Centroid

Proposed Problem 255.
Triangle, Centroid, Vertices, a Point, Distances, Squares.
Concurrent medians.

Elearning 254: Triangle and Centroid

Proposed Problem 254.
Triangle, Centroid, Vertices, a Point, Distances, Squares.
Concurrent medians.

Elearning 253: Triangle, Centroid

Proposed Problem 253.
Triangle, Centroid, Vertices, Distances, Squares.
Concurrent medians.

Triangle sides, medians, squares

Proposed Problem 249.
Triangle sides, medians, squares.
Concurrent medians.

Geometry Problem 191 about triangle and squares

Proposed Problem 191. Triangle, Altitudes, Orthocenter, Squares, Areas.
Concurrent altitudes.

Circumscribed quadrilateral

Proposed Problem 153. Circumscribed Quadrilateral, Diagonals Concurrent with Chords.  

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