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Online Plane Geometry: Excenters, Excircles, Exradius,
Triangle. Theorems and Problems
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Excenter, Excircle of a triangle -
Index 3
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Proposed Problem 159. Distances
from the Circumcenter to the Incenter and the Excenters. |
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Proposed Problem 158. Relation
between the Circumradius, Incircle, Inradius and Exradii of a triangle.
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Proposed Problem 120. Area
of triangle, incenter, excircles, tangent.
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Proposed Problem 119. Area
of triangle, incenter, excircle, tangent.
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Proposed Problem 118. Area
of triangle, incenter, excenter, tangent.
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Proposed Problem 117. Area
of triangle, incenter, excircles, tangent.
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Proposed Problem 114. Area of
triangle, incenter, incircle, excircle.
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Proposed Problem 113. Area of
triangle, incenter, incircle, excircle.
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Intouch and Extouch Triangles. Puzzle cut: 20 Piece Classic
Based on Proposed Problem 86. |
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Proposed Problem 86. Intouch and
Extouch Triangles, Excircles, Areas. |
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Contact Triangles. Puzzle cut: 22 Piece Polygons
Based on Proposed Problem 85. Excircles |
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Proposed Problem 85. Contact
Triangles Areas, Incircle, Excircles. |
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Proposed Problem 84. Contact
Triangles Areas, Incircle, Excenter, Excircle, Inradius, Exradius. |
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Proposed Problem 40.
Triangle, Incenter, Excenter, Angles 80, 40, Distances. |
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Euclid's Elements Book I, 23 Definitions. One-page visual illustration.
Euclid's
Elements Book. Index |
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