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Analytic Geometry
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Demonstrations 101  120 of 179
A Triangle Inequality Involving the Altitudes, Semiperimeter, Inradius, and Circumradius
Triangle Altitudes and Inradius
Inversive Geometry II: The Peaucellier Inversor Mechanism
Orthocentre d'un triangle inscrit dans une hyperbole (French)
Virtual Flowers with Crispate Petals
Ellipse and Friends
Normal Lines to a Parabola
2D View of a Conformal Mapping
Tangent Lines to a Conic Section
Two Tangent Lines to a Parabola
Hyperbolic Paraboloid Embracing an Elliptic Paraboloid
Normed Line
The 26Sided Unilluminable Room
Two Lines Determine a Circle
Osculating Circles 3D
Matrix Transformation
The Polar Equations of Hearts and Flowers
Magnetic ngon Billiards
A Greeting from a Surface Plot
Cross Product in Spherical Coordinates
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