A Triangle Inequality Involving the Altitudes, Semiperimeter, Inradius, and Circumradius

Initializing live version

If a triangle has altitudes , , and , semiperimeter , inradius , and circumradius , then .

Contributed by: Jay Warendorff (March 2011)
Open content licensed under CC BY-NC-SA

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This Demonstration is based on:

"Problem 11330," The American Mathematical Monthly, 114(10), 2007 p. 925.


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