# 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

## Snapshots

## Details

The statement of the theorem is in Problem 157. Distance from the Circumcenter to the Excenter.

## Permanent Citation

"The Distance from the Circumcenter to an Excenter"

http://demonstrations.wolfram.com/TheDistanceFromTheCircumcenterToAnExcenter/

Wolfram Demonstrations Project

Published: March 7 2011