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Plane Geometry
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Demonstrations 121  140 of 1017
Tangent to a Cycloid
Mechanism for Constructing Regular Polygons
Primitive Pythagorean Triples on a Curvilinear Grid Defined by Euclid's Formula
Trisecting an Angle Using a Conchoid
Rotation about a Point in the Plane
Matrix Transformations: "F"
Circumscribing Polygons
Archimedes' Approximation of Pi
Angle and Length Measurement of a Polygon
Circles of Apollonius
NinePoint Circle
Geometric Elements of a Circle
Focus and Directrix in a Quadratic Bézier Curve
Rational Cubic Bézier Curves
Exterior Tangents to Three Circles
Diocles's Solution of the Delian Problem
Clairaut's Angle Trisection
Descartes's Angle Trisection
Pedal Curves of Conics
Incommensurability of the Base and Leg in an Isosceles Triangle
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