Circles through the Orthocenter
Initializing live version

Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
The three circles through two vertices of a triangle and its orthocenter (the intersection of the triangle's altitudes) have the same radius as the circumcircle.
Contributed by: Jay Warendorff (March 2011)
Open content licensed under CC BY-NC-SA
Snapshots
Details
detailSectionParagraphPermanent Citation
"Circles through the Orthocenter"
http://demonstrations.wolfram.com/CirclesThroughTheOrthocenter/
Wolfram Demonstrations Project
Published: March 7 2011