Online Geometry: Equilateral Triangles, Theorems and Problems - Page 4

Machu Picchu and Sierpinski Tunel Effect.

Tessellations Index.

Interactive Mind Map of the Van Hiele Model of Geometric Thought
Level 0. (Basic Level) Visualization.

Machu Picchu and the Flower of Life

The Flower of Life Index:
 Christ Redeemer, Taj Mahal,
 Machu Picchu, Chichen Itza
 Roman Colosseum, Petra, Jordan
 Great Wall of China

Proposed Problem 59: Right and Equilateral Triangles, Midpoints.

Proposed Problem 50. Triangle with Equilateral triangles.
Seventeen conclusions.

Geometry of Circles "Sesame Street" by Philip Glass, 1979.

Proposed Problem 42. Angles and triangles.

Problem 40. Triangle, Incenter, Excenter, Angles 80, 40, Distances.
Problem 40. Geometry Help. Suggestions.

Problem 4. Quadrilateral, equal sides and angles.

Problem 1. Triangle, median and angles.