Triangles: Theorems and Problems 21




Proposed Problem
260.
Equilateral Triangle, Incircle, Tangency Points, Vertices, Distances, Squares.


Proposed Problem
259.
Equilateral Triangle, Incircle, Tangency Points, Side, Distances, Squares.


Proposed Problem
258.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances,
Squares.


Proposed Problem
257.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances,
Squares.


Proposed Problem
256.
Equilateral Triangle, Circumcircle, Point, Vertices, Distances.


Proposed Problem
255.
Triangle, Centroid, Vertices, a Point, Distances, Squares.


Proposed Problem
254.
Triangle, Centroid, Vertices, a Point, Distances, Squares.


Proposed Problem
253.
Triangle, Centroid, Vertices, Distances, Squares.


Proposed Problem
252.
Parallelogram, sides, diagonals, squares, areas.


Proposed Problem
249.
Triangle sides, medians, squares.


Proposed Problem
248.
Napoleon's Theorem III. Inner and outer Napoleon triangles, Area.


Proposed Problem
247.
Napoleon's Theorem II. Internal Equilateral triangles. Inner Napoleon
triangle.


Proposed Problem
246.
Napoleon's Theorem I. External Equilateral triangles. Outer Napoleon
triangle.


Proposed Problem
245. Parallelogram with Equilateral triangles


Proposed Problem
243. Triangle with Equilateral triangles, Parallelogram.


Proposed Problem
242. Triangle with Equilateral triangles, Parallelogram.


Proposed Problem
241. Triangle with Equilateral triangles, Congruence.


Proposed Problem
240. Triangle with Equilateral triangles, Parallelogram.


Proposed Problem
239. Square, Midpoints, Lines, Congruence, Pythagoras.


Proposed Problem
238. Square, Midpoints, Lines, Congruence.

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