Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsAlbrecht Dürer's Heptagon of 1525http://demonstrations.wolfram.com/AlbrechtDurersHeptagonOf1525/]]>http://demonstrations.wolfram.com/AlbrechtDurersHeptagonOf1525/Distance of a Point to a Segmenthttp://demonstrations.wolfram.com/DistanceOfAPointToASegment/]]>http://demonstrations.wolfram.com/DistanceOfAPointToASegment/The Trammel of Archimedeshttp://demonstrations.wolfram.com/TheTrammelOfArchimedes/]]>http://demonstrations.wolfram.com/TheTrammelOfArchimedes/Triangle Side Length Inequalityhttp://demonstrations.wolfram.com/TriangleSideLengthInequality/]]>http://demonstrations.wolfram.com/TriangleSideLengthInequality/Angle Bisectors of Two Intersecting Lineshttp://demonstrations.wolfram.com/AngleBisectorsOfTwoIntersectingLines/]]>http://demonstrations.wolfram.com/AngleBisectorsOfTwoIntersectingLines/Mascheroni's Construction of the Center of a Circlehttp://demonstrations.wolfram.com/MascheronisConstructionOfTheCenterOfACircle/]]>http://demonstrations.wolfram.com/MascheronisConstructionOfTheCenterOfACircle/Folding an Equilateral Triangle in a Squarehttp://demonstrations.wolfram.com/FoldingAnEquilateralTriangleInASquare/]]>http://demonstrations.wolfram.com/FoldingAnEquilateralTriangleInASquare/Angle Bisectors in a Trianglehttp://demonstrations.wolfram.com/AngleBisectorsInATriangle/]]>http://demonstrations.wolfram.com/AngleBisectorsInATriangle/Albrecht Dürer's Pentagon of 1525http://demonstrations.wolfram.com/AlbrechtDurersPentagonOf1525/]]>http://demonstrations.wolfram.com/AlbrechtDurersPentagonOf1525/Parabolic Envelope from Congruent Triangleshttp://demonstrations.wolfram.com/ParabolicEnvelopeFromCongruentTriangles/]]>http://demonstrations.wolfram.com/ParabolicEnvelopeFromCongruentTriangles/Two Lines Determine a Circlehttp://demonstrations.wolfram.com/TwoLinesDetermineACircle/]]>http://demonstrations.wolfram.com/TwoLinesDetermineACircle/Triangles: Scalene, Isosceles, and Equilateralhttp://demonstrations.wolfram.com/TrianglesScaleneIsoscelesAndEquilateral/]]>http://demonstrations.wolfram.com/TrianglesScaleneIsoscelesAndEquilateral/Constructing a Regular Pentagon with Ruler and Compasshttp://demonstrations.wolfram.com/ConstructingARegularPentagonWithRulerAndCompass/]]>http://demonstrations.wolfram.com/ConstructingARegularPentagonWithRulerAndCompass/The Perpendicular Bisectors of a Trianglehttp://demonstrations.wolfram.com/ThePerpendicularBisectorsOfATriangle/]]>http://demonstrations.wolfram.com/ThePerpendicularBisectorsOfATriangle/Indestructible Perpendicular Lineshttp://demonstrations.wolfram.com/IndestructiblePerpendicularLines/]]>http://demonstrations.wolfram.com/IndestructiblePerpendicularLines/The Eye-Pentagon Constructionhttp://demonstrations.wolfram.com/TheEyePentagonConstruction/]]>http://demonstrations.wolfram.com/TheEyePentagonConstruction/Swinging Double Slider-Crankhttp://demonstrations.wolfram.com/SwingingDoubleSliderCrank/]]>http://demonstrations.wolfram.com/SwingingDoubleSliderCrank/Intersecting Circleshttp://demonstrations.wolfram.com/IntersectingCircles/]]>http://demonstrations.wolfram.com/IntersectingCircles/Doubling a Distance with a Compasshttp://demonstrations.wolfram.com/DoublingADistanceWithACompass/]]>http://demonstrations.wolfram.com/DoublingADistanceWithACompass/Bisection of Line Segmenthttp://demonstrations.wolfram.com/BisectionOfLineSegment/]]>http://demonstrations.wolfram.com/BisectionOfLineSegment/