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Excircles of a Triangle
Author:
Luke Bosick
GeoGebra
An excircle of the triangle is a circle lying outside the triangle, tangent to one of its sides and tangent to the extensions of the other two.
New Resources
Pelecoid
Ellipse as Envelope - Correspondence Method
Angles and Intersecting Lines: Quick Investigation
Viviani's Window
"Compressed" Astroid as Envelope
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Center of Dilation 2 a&b
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Vectors on a plane
Circle Sewing Pattern
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Sphere
Circle
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Variance