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Napoleon's Theorem, Index |
![Napoleon Theorem and Problem Index](napoleon_theorem_index_17.jpg) |
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![Geometry problem 1205](../school-college/3/p1205-napoleon-theorem-inner-outer-centroid-1.jpg) |
Geometry Problem 1205
Triangle, Centroid, Outer and Inner Napoleon Equilateral Triangles. |
![Elearning: Napoleon Theorem III](../problem/p248_napoleon_theorem_17.jpg) |
Proposed Problem 248.
Napoleon's Theorem III. Inner and outer Napoleon triangles, Area.
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![iPhone app geometry](../ipad/apps-apollonius-igs-sw/ipad-napoleon-triangle-theorem-1.jpg) |
iPad Apps: Apollonius for iPad. Napoleon's Theorem. |
![Napoleon Theorem II](../problem/p247_napoleon_theorem_17.jpg) |
Proposed Problem 247.
Napoleon's Theorem II. Internal Equilateral triangles. Inner Napoleon
triangle.
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![Napoleon Theorem I](../problem/p246_napoleon_theorem_17.jpg) |
Proposed Problem 246.
Napoleon's Theorem I. External Equilateral triangles. |
![Napoleon's Theorem](../napoleon170.gif) |
Napoleon's Theorem. A purely geometric
proof. It uses the Fermat point to prove Napoleon without
transformations.
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![Equilateral triangles](../problem/p404_equilateral_triangle_1.jpg) |
Proposed Problem 404.
External Equilateral triangles, Congruent and Concurrent Lines. (Fermat
Point) |
![Elearning 243](../problem/p243_equilateral_triangle_1.jpg) |
Proposed Problem 243. Triangle with Equilateral triangles,
Parallelogram.
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![Elearn 242: Equilateral triangle and parallelogram](../problem/p242_equilateral_triangle_1.jpg) |
Proposed Problem 242. Triangle with Equilateral triangles,
Parallelogram.
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![Equilateral triangle, congruence SAS](../problem/p241_equilateral_triangle_1.jpg) |
Proposed Problem 241. Triangle with Equilateral triangles,
Congruence.
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![Triangle with equilateral triangles](../problem/p240_equilateral_triangle_1.jpg) |
Proposed Problem 240. Triangle with Equilateral triangles,
Parallelogram.
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![](../problem/p050_angle_triangle_170.jpg) |
Proposed
Problem 50. Triangle with Equilateral triangles.
Seventeen conclusions.
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![Geometry problem 1125](../school-college/2/p1125-triangle-four-equilateral-centroid-midpoint-1.jpg) |
Geometry Problem 1125.
Triangle, Four Equilateral Triangles, Centroid, Midpoint. |