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Triangles
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Demonstrations 61  80 of 720
Distance between Orthocenter and Center of Taylor Circle
Constructing a Rational Rectangle
Basic Parameters of the Orthocenter
Basic Parameters of the Nagel Point
Exact Trilinear Coordinates and the Pedal Triangle
Distance between Inner and Outer Soddy Centers
Distance between Gergonne Point and Fletcher Point
Distance between Incenter and Fletcher Point
Exact Trilinear Coordinates and the Euler Line
Exact Trilinear Coordinates and the Brocard Axis
Inequalities for a Malfatti Triangle
Tripolar Coordinates of Soddy Centers
An Inequality Relating the Nagel Point and Exact Trilinear Coordinates
A Quintuple Triangle Inequality
Angles of a Triangle
Distances from the Incenter to the Fermat Points
Distance between Two Fermat Points
An Excircle Inequality
A Triangle Semiperimeter Inequality
Lengths of Sides and Angle Bisectors Are Rational Together
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