Special Right Triangle 30 60
Theorems and Problems  Table of Content




Euclid's Elements
Book I, 23 Definitions. Onepage visual illustration.
Euclid's Elements Book.
Index 

Special Right Triangles.


Geometry Problem 963.
Right Triangle, 306090 Degrees, Angle Bisectors, Metric Relations. 

Geometry Problem 956.
Two Equilateral Triangles, Center, Collinear Points, Midpoint, Right Triangle, 30, 60, 90 Degrees. 

Proposed Problem 405.
Quadrilateral, 60, 75, and 135 degrees, Midpoint. 

Proposed Problem 304.
Triangle, Angle bisector of 120 degrees. 

Proposed Problem 302.
Triangle, Angle bisector of 60 degrees. 

Proposed Problem 102.Equilateral
Triangle Area, Interior Point. 

Proposed Problem 44.
Angles and triangles,
60 degrees angle.


Proposed Problem 43.
Angles and triangles. 

Proposed Problem 42.
Angles and triangles,
60 degrees angle. 