See also Circumcenter ,

Circumradius ,

Euler's Inequality ,

Incenter ,

Inradius ,

Poncelet's
Porism
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References Altshiller-Court, N. "Euler's Theorem." §152 in College
Geometry: A Second Course in Plane Geometry for Colleges and Normal Schools, 2nd
ed., rev. enl. New York: Barnes and Noble, pp. 85-86, 1952. Casey,
J. A
Sequel to the First Six Books of the Elements of Euclid, Containing an Easy Introduction
to Modern Geometry with Numerous Examples, 6th ed. Dublin: Hodges, Figgis,
& Co., 1888. Johnson, R. A. Modern
Geometry: An Elementary Treatise on the Geometry of the Triangle and the Circle.
Boston, MA: Houghton Mifflin, 1929. Kazarinoff, N. D. Geometric
Inequalities. New York: Random House, pp. 78-79, 1961. Mackay,
J. S. "Historical Notes on a Geometrical Theorem and its Developments [18th
Century]." Proc. Edinburgh Math. Soc. 5 , 62-78, 1886-1887. Referenced
on Wolfram|Alpha Euler Triangle Formula
Cite this as:
Weisstein, Eric W. "Euler Triangle Formula."
From MathWorld --A Wolfram Web Resource. https://mathworld.wolfram.com/EulerTriangleFormula.html

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