The Distance from the Circumcenter to an Excenter
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Let ABC be a triangle with circumcenter O and let E be the excenter of the excircle opposite A. Let be the circumradius and the exradius. Then .
Contributed by: Jay Warendorff (March 2011)
After work by: Antonio Gutierrez
Open content licensed under CC BY-NC-SA
The statement of the theorem is in Problem 157. Distance from the Circumcenter to the Excenter.
"The Distance from the Circumcenter to an Excenter"
Wolfram Demonstrations Project
Published: March 7 2011