Wolfram Demonstrations Projecthttp://demonstrations.wolfram.com/An Open Resource of Interactive Mathematica VisualizationsCopyright 2009 Wolfram Demonstrations Project & ContributorsThe Extouch and Intouch Triangles of a Trianglehttp://demonstrations.wolfram.com/TheExtouchAndIntouchTrianglesOfATriangle/]]>http://demonstrations.wolfram.com/TheExtouchAndIntouchTrianglesOfATriangle/An Angle Bisectionhttp://demonstrations.wolfram.com/AnAngleBisection/]]>http://demonstrations.wolfram.com/AnAngleBisection/Three Concyclic Sets of Points Associated with the Orthic Trianglehttp://demonstrations.wolfram.com/ThreeConcyclicSetsOfPointsAssociatedWithTheOrthicTriangle/]]>http://demonstrations.wolfram.com/ThreeConcyclicSetsOfPointsAssociatedWithTheOrthicTriangle/The Line through the Incenter and Circumcenterhttp://demonstrations.wolfram.com/TheLineThroughTheIncenterAndCircumcenter/]]>http://demonstrations.wolfram.com/TheLineThroughTheIncenterAndCircumcenter/The Distances to the Incenter and Excenters from the Circumcenterhttp://demonstrations.wolfram.com/TheDistancesToTheIncenterAndExcentersFromTheCircumcenter/]]>http://demonstrations.wolfram.com/TheDistancesToTheIncenterAndExcentersFromTheCircumcenter/The Distance from the Circumcenter to an Excenterhttp://demonstrations.wolfram.com/TheDistanceFromTheCircumcenterToAnExcenter/]]>http://demonstrations.wolfram.com/TheDistanceFromTheCircumcenterToAnExcenter/The Product of the Circumradius and an Exradiushttp://demonstrations.wolfram.com/TheProductOfTheCircumradiusAndAnExradius/]]>http://demonstrations.wolfram.com/TheProductOfTheCircumradiusAndAnExradius/Another Relation between the Areas of Triangles Associated with an Excirclehttp://demonstrations.wolfram.com/AnotherRelationBetweenTheAreasOfTrianglesAssociatedWithAnExc/]]>http://demonstrations.wolfram.com/AnotherRelationBetweenTheAreasOfTrianglesAssociatedWithAnExc/On the Areas of Triangles Associated with an Excirclehttp://demonstrations.wolfram.com/OnTheAreasOfTrianglesAssociatedWithAnExcircle/]]>http://demonstrations.wolfram.com/OnTheAreasOfTrianglesAssociatedWithAnExcircle/The Sum of the Circumradii of Three Subtriangleshttp://demonstrations.wolfram.com/TheSumOfTheCircumradiiOfThreeSubtriangles/]]>http://demonstrations.wolfram.com/TheSumOfTheCircumradiiOfThreeSubtriangles/The Sum of the Square Roots of the Areas of Three Subtriangleshttp://demonstrations.wolfram.com/TheSumOfTheSquareRootsOfTheAreasOfThreeSubtriangles/]]>http://demonstrations.wolfram.com/TheSumOfTheSquareRootsOfTheAreasOfThreeSubtriangles/The Sum of the Perimeters of Three Subtriangleshttp://demonstrations.wolfram.com/TheSumOfThePerimetersOfThreeSubtriangles/]]>http://demonstrations.wolfram.com/TheSumOfThePerimetersOfThreeSubtriangles/The Semiperimeter and Tangents to Excircleshttp://demonstrations.wolfram.com/TheSemiperimeterAndTangentsToExcircles/]]>http://demonstrations.wolfram.com/TheSemiperimeterAndTangentsToExcircles/Two Midpoints of a Trapezoidhttp://demonstrations.wolfram.com/TwoMidpointsOfATrapezoid/]]>http://demonstrations.wolfram.com/TwoMidpointsOfATrapezoid/Relations between Some Triangles Associated with Excircleshttp://demonstrations.wolfram.com/RelationsBetweenSomeTrianglesAssociatedWithExcircles/]]>http://demonstrations.wolfram.com/RelationsBetweenSomeTrianglesAssociatedWithExcircles/A Parallelogram Defined by the Centers of Four Circumcircleshttp://demonstrations.wolfram.com/AParallelogramDefinedByTheCentersOfFourCircumcircles/]]>http://demonstrations.wolfram.com/AParallelogramDefinedByTheCentersOfFourCircumcircles/The Contact Triangle and Two Other Subtriangleshttp://demonstrations.wolfram.com/TheContactTriangleAndTwoOtherSubtriangles/]]>http://demonstrations.wolfram.com/TheContactTriangleAndTwoOtherSubtriangles/The Circumcircles of Four Triangleshttp://demonstrations.wolfram.com/TheCircumcirclesOfFourTriangles/]]>http://demonstrations.wolfram.com/TheCircumcirclesOfFourTriangles/A Congruent Angle inside the Incirclehttp://demonstrations.wolfram.com/ACongruentAngleInsideTheIncircle/]]>http://demonstrations.wolfram.com/ACongruentAngleInsideTheIncircle/The Area of a Triangle inside the Incirclehttp://demonstrations.wolfram.com/TheAreaOfATriangleInsideTheIncircle/]]>http://demonstrations.wolfram.com/TheAreaOfATriangleInsideTheIncircle/