Median of a Triangle, Theorems and Problems - Table of Content

Points, Theorems and Problems - Index.
Intersection Point.

Median length, Apollonius' Theorem

Centroid /Barycenter. Index.
Medians.

GeoGebra, Dynamic Geometry: Centroid of a Triangle.
HTML5 Animation for Tablets (iPad, Nexus..)

Triangle Centroid (Medians) by Folding, Video.
Dynamic Geometry Software: Tabula by Numeracy Works.
Step-by-Step construction, Manipulation, and animation.

Symmedian (Lemoine) Point
Symmedian is the line symmetric of the median with respect to the bisector of the angle from which the median is drawn.

Marion Walter's Theorem: Triangle and Hexagon areas: Using TracenPoche Dynamic Geometry Software.
Medians.

Nine-Point Center, Nine-Point Circle, Euler Line.
Interactive illustration.
Median.

Heron's Formula with medians.
Medians.

Newton's Theorem, Newton-Gauss Line: Complete quadrilateral theorem. Using TracenPoche Dynamic Geometry Software, Online Step-by-Step construction, manipulation, and animation. Medians.

Feuerbach Points and Nine-Point Circle with interactive animation, manipulation, and step-by-step construction.

Geometry Problem 870
Triangle, Median, Three Squares, Centers, Vertices, Collinear Points, Midpoint.

Geometry Problem 867
Isosceles Triangle, Median, Perpendicular, Angle, Congruence.

Geometry Problem 860
Triangle, Three Medians, Parallel, Parallelogram, Area, Congruence.

Geometry Problem 857
Triangle, Median, Midpoint, Angles, 30, 45 Degrees, Congruence, Auxiliary Lines.

Geometry Problem 802
Scalene Triangle, Median, Perpendicular, Angle, Measurement.

Geometry Problem 734.
Triangle, Isosceles, Median, Parallel, Angle Bisector, Congruence, Midpoint.

Geometry Problem 714.
Triangle, Parallel, Cevians, Midpoints, Median, Ceva Theorem.

Geometry Problem 679.
Triangle, Circle, Median, Proportion.

Problem 572.
Right triangle, Median, Circle, Diameter, Excircle, Tangent circles.

Problem 528.
Triangle, Medians, Perpendicular, Measurement.

Proposed Problem 402.
Hexagon, Triangle, Centroid, Parallel, Congruence, Similarity.

Proposed Problem 263.
Triangle, Median, Altitude, Orthogonal Projection, Sides.

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

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

Proposed Problem 253.
Triangle, Centroid, Vertices, Distances, Squares.
Midpoints.

Proposed Problem 250.
Quadrilateral, sides, diagonals, midpoints, squares.
Median.

Proposed Problem 176. Quadrilateral with Midpoints, Triangles, Median, Areas.  

Proposed Problem 175. Quadrilateral with Midpoints, Areas.  

Proposed Problem 174. Quadrilateral with Midpoints, Triangles, Median, Areas.  

Proposed Problem 173. Quadrilateral with Midpoints, Triangles, Median, Areas.  

Proposed Problem 172. Trapezoid, Midpoints, Quadrilaterals, Areas.  

Proposed Problem 171. Trapezoid, Midpoints, Triangles, Median, Areas.  

Proposed Problem 170. Trapezoid, Midpoint, Triangle, Median, Area.  

Proposed Problem 161. Parallelogram, Midpoints, Octagon, Median, Areas.  

Proposed Problem 151a>. Quadrilateral, Area, Trisection of Sides.
Midpoints.

Proposed Problem 150. Quadrilateral, Area, Trisection of Sides.
Midpoints.

PrProposed Problem 149. Quadrilateral, Median, Area, Midpoints.

Proposed Problem 148. Quadrilateral, Median, Area, Midpoints.

Proposed Problem 147. Quadrilateral, Median, Area, Midpoints, Triangle.

Proposed Problem 146>. V. Varignon's Theorem: Quadrilateral, Midpoints, Parallelogram, Area, Perimeter.

Trapezoid, Triangle, Diagonals, Midpoints. Dynamic Geometry.
Step-by-Step construction, Manipulation, and animation.
Median.

Proposed Problem 108. Angles, Triangle, Median. Median.

Proposed Problem 98>. Q. Quadrilateral Area, Centroid, Similarity.
Midpoints.ont>

ProProposed Problem 90. Quadrilateral and Triangle Areas, Midpoints, Median.

Proposed Problem 89. Triangles of equal area, Midpoints, Median.

Proposed Problem 88. Triangle and Quadrilateral Areas, Midpoints, Median.

Proposed Problem 87. Area of Quadrilaterals and Midpoints of Diagonals, Median.

Proposed Problem 1: Angles of a Triangle. Median, Congruence. Hints are provided.

Proposed Problem 47. Angles and triangles.
Median.

Proposed Problem 46>. Angles and triangles. Midpoints.

Geometry Online Glossary. Altitude.
Geometry Glossary based on the new New York State mathematics standards initiative.

IntInteractive Geometry Glossary using AnswerTips technology.> Altitude.