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 1553: Solving for OC in Triangle ABC with Unique Angle Bisectors 

Geometry Problem 1552: Exploring Angle C in Triangle ABC with Given Angle A and Side Lengths 

Geometry
Problem 1531: Discover How to Calculate the Length of a Chord in a Circle with Diameter Intersection and an Angle between the Diameter and Chord  A High School Challenge.
. 

Geometry
Problem 1517 and a Thematic Poem.
Unlocking Triangle Side Length: Solving with a Median and Two Angles. Difficulty Level: High School. 

Geometry
Problem 1514 and a Thematic Poem.
Discover the Secret to Finding Distances in Regular Hexagons with Interior Squares. Difficulty Level: High School. 

Geometry Problem 1461.
Quadrilateral, Triangle, Angles, 3060 Degree, Congruence, Auxiliary Lines. 

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. 