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Jay Warendorff
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Demonstrations 81  100 of 272
The Product of the Inradius and Three Exradii
The Distance from the Circumcenter to an Excenter
The Product of the Circumradius and an Exradius
Another Relation between the Areas of Triangles Associated with an Excircle
On the Areas of Triangles Associated with an Excircle
The Sum of the Circumradii of Three Subtriangles
The Sum of the Square Roots of the Areas of Three Subtriangles
The Sum of the Perimeters of Three Subtriangles
Van Aubel's Theorem for Triangles
The Sum of the Exradii Minus the Inradius
Ceva's Theorem
A Triangle Inequality Involving the Altitudes, Semiperimeter, Inradius, and Circumradius
Angle Bisectors in a Triangle
Inscribing Four Circles in a Triangle
Routh's Theorem
Stewart's Theorem
The Semiperimeter and Tangents to Excircles
A Line Parallel to a Side of a Triangle
The Distance to the Orthocenter from a Vertex
Two Midpoints of a Trapezoid
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