Isosceles Triangle, Theorems
and Problems  Table of
Content 10




Perpendicular Bisector. 

Triangle with Double Angle, Theorems and
Problems, Index


Langley's Problem
Adventitious angles. 20° isosceles triangle with animation.


MindMap of Euclid's Elements Book I
Triangles by Side: Equilateral, Isosceles, Scalene. 

Bottema's Theorem.
Invariance of an isosceles right triangle.
Triangle and Squares with Interactive Geometry Software
StepbyStep construction, Manipulation, and animation. 

Kurschak's Tile and Theorem.
Jozsef Kurschak (Hungary, 18641933) An elegant and a purely geometric
way of finding the area of a regular dodecagon.
32 congruent isosceles triangles. 
Go to Page:
Previous 
1 
5 
10 
Next 