Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsHow Many Right Triangles Can You Find?http://demonstrations.wolfram.com/HowManyRightTrianglesCanYouFind/]]>http://demonstrations.wolfram.com/HowManyRightTrianglesCanYouFind/Triangles: Scalene, Isosceles, and Equilateralhttp://demonstrations.wolfram.com/TrianglesScaleneIsoscelesAndEquilateral/]]>http://demonstrations.wolfram.com/TrianglesScaleneIsoscelesAndEquilateral/Triangles: Acute, Right, and Obtusehttp://demonstrations.wolfram.com/TrianglesAcuteRightAndObtuse/]]>http://demonstrations.wolfram.com/TrianglesAcuteRightAndObtuse/