Triangles: Theorems and Problems 26




Proposed Problem
167. Parallelogram, Diagonal, Triangles, Areas.


Proposed Problem
166. Parallelogram, Diagonal, Triangles, Areas.


Proposed Problem
165. Parallelogram, Diagonal, Triangles, Areas.


Proposed Problem
164. Parallelogram, Trapezoid, Diagonal, Triangles, Areas.


Proposed Problem
163. Trapezoid, Diagonals, Triangles, Areas.
Trapezoid Index 

Proposed Problem
162. Parallelogram, Triangles, Areas.


Proposed Problem
160. Triangle, Incircle, Incenter, Circumcircle, Circumcenter, Inradius. 

Proposed Problem
159. Distances from the Circumcenter to the Incenter and the Excenters. 

Proposed Problem
158. Relation between the Circumradius, Inradius and Exradii of a triangle. 

Proposed Problem
157. Distance from the Circumcenter to the Excenter. 

Proposed Problem
156. Triangle, Circumradius, Exradius, Chord, Secant line. 

Proposed Problem
155. Euler's Theorem: Distance from the Incenter to the Circumcenter. 


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