

School, College: Geometry Theorems and
Problems, Index

Geometry, Level: College, High
School  Table of Content




Problems and solutions. 

Geometry Types, Methodologies, Terminologies
Interactive Mind Map and News.


Definitions. 

Points, Theorems and Problems  Index. 

Angles. Theorems and Problems. 

Lines:
Parallel,
Perpendicular,
Concurrent,
Transversal,
Collinear Points,
Midpoints 

Triangles:
Equilateral,
Isosceles,
Right Triangle,
Obtuse Triangle 

Quadrilaterals:
Parallelogram,
Square,
Rectangle,
Rhombus,
Trapezoid 

Polygons:
Pentagon,
Hexagon,
Heptagon,
Octagon,
Nonagon or Enneagon 

Circles:
Intersecting Circles,
Tangent Circles,
Intersection of a Line with a Circle 

Triangle Centers:
Centroid /Barycenter,
Circumcenter,
Incenter,
Excenter,
Orthocenter 

Congruence


Similarity, Ratios, Proportions.
Metric Relations in a Right Triangle 

Areas:
Triangle,
Square. 

Classical
Theorems 

Solid Geometry. 

Geometry
Art Problems
Gallery Index


Geometria en Espanol,
Teoremas y Problemas en
Espanol. (Spanis(Spanishlanguage version) 

Euclid's Elements Book.
Index 

Geometry
for Children. 

Dynamic Geometry. 






