Euclid's Muse

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Search Results for “incenter”

By Duncan
Similar Triangle Incenter
This problem showed up in a math competition. See what you can make of it.  

Tags: incenter, circle, similar-triangles

By Phil Todd
Ellipse Incenter Locus
What is the locus of the incenter of the triangle formed by the string in the "two pins and a piece of string" construction of an ellipse?

Tags: ellipse, locus

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