Obtuse Triangle Theorems and
Problems - Table of Content
|
 |
|
 |
Euclid's Elements
Book I, 23 Definitions. One-page visual illustration.
Euclid's Elements Book.
Index |
 |
Euclid's Elements Book II, Proposition 12: Law of Cosines.
Obtuse triangle. |
 |
Feuerbach Theorem, Obtuse Triangle illustration.
Obtuse triangle. |
 |
The Pythagorean Curiosity
Triangles and squares, fifteen conclusions.
Several obtuse triangles. |
 |
Geometry Problem
1033.
Triangle, Angle Obtuse, Circumcircle, Diameter, Area. |
 |
Proposed Problem 368.
Obtuse Triangle, 120 degrees, Angle bisectors, Perpendicular. |
 |
Proposed Problem 364.
Obtuse triangle, Congruence, Circles, Diameter, Curvilinear triangle,
Area. |
 |
Proposed Problem 322.
Square, Inscribed circle, Tangent, Triangle area.
Obtuse triangle. |
 |
Proposed Problem 304.
Triangle, Angle bisector of 120 degrees. Obtuse triangle. |
 |
Proposed Problem 212. 120 Degree Triangle, Equilateral triangles,
Areas.
Obtuse triangle. |
 |
Proposed Problem 199. Triangle, Quadrilateral, Angles.
|
 |
Proposed Problem 112. Area of
square and obtuse triangle.
|
|
Problem 47.
Obtuse Triangle, median, and angles. |
|
Problem 46. Obtuse
Triangle, median, and angles. |
 |
Problem 14. Obtuse
Triangle, median, and angles. |
 |
Problem
1. Obtuse Triangle, median and angles. |