Triangles: Theorems and Problems 31




Proposed Problem
117. Area of triangle,
incenter, excircles,
tangent.


Proposed Problem
116. Area of triangle, excircles,
tangent.


Proposed Problem
115. Area of triangle, excircles,
tangent.


Proposed Problem
114. Area of triangle, incircle,
excircle.


Proposed Problem
113. Area of triangle, incircle,
excircle.


Proposed Problem
112. Area of square and triangle.


Proposed Problem
110. Area of Contact Triangle.


Proposed Problem
109. Angles, Right Triangle, Cevian.


Proposed Problem
108. Angles, Triangle, Median. 

Proposed Problem
107. Angles, Triangle. Cevian. 

Proposed Problem
106. Angles, Triangle. Cevian. 

Proposed Problem
105.Angles, Triangle. Interior
Point. 

Proposed Problem
104. Angles, Triangle. 

The Pythagorean Curiosity
Triangles and squares, fifteen conclusions. 

Proposed Problem
103.Equilateral Triangle Area,
Interior Point, Heron's Formula.


Proposed Problem
102.Equilateral Triangle Area,
Interior Point. 