The Nagel Point


	A circle drawn outside a triangle that is tangent to the extensions of two of its sides and to the third side is an excircle. The lines connecting the vertices of a triangle with the corresponding points of tangency of the three excircles are concurrent. The intersection is called the Nagel point.


	Contributed by: Jay Warendorff

Nagel Point (Wolfram MathWorld)

"The Nagel Point" from The Wolfram Demonstrations Project
http://demonstrations.wolfram.com/TheNagelPoint/

Contributed by: Jay Warendorff

Free Download: Mathematica Player--Runs all Demonstrations & more

Plane Geometry
Triangles

Browse all topics

The Medial Triangle and Concurrency at the Nagel Point
The Begonia Point
The Schiffler Point
The Gergonne Point
Circumcircles Intersecting at the First Fermat Point
Adams' Circle and the Gergonne Point
A Concurrency from a Point and a Triangle's Excenters
The Center and Radius of the Nine-Point Circle
A Triangle Formed by the Centers of Three Nine-Point Circles
A Collinearity between the Nine-Point Center, the Foot of an Altitude, and a Midpoint

Email
Link to URL
Embed
Bookmark

Make a new version of this Demonstration
Upload a new Demonstration

Source page:

Name (optional)

Occupation (optional)

Organization (optional)

I use Mathematica:

often

occasionally

never

Country (optional)
Remember me

Note: Please do not include anything you consider confidential or proprietary. We will keep your information private. We will not give it to any third party.
Privacy Policy »