- Visual MathematicsDistances from three pointsPoint in an Equilateral TriangleMoss Egg by Robert DixonThe Pythagorean Theorem.Pythagorean Theorem Proof without WordsEspiral de BaravelleBaravelle's Spiral and Infinite Geometric SeriesRotating FanCircle mandalaSquare Inscribed in an Isosceles Right TrianglePythagorean Theorem proof by translationArchimedean Spiral built by parametric equationsCrossing Wires ProblemNested Median TrianglesApproximation of pi using inscribed polygonsThe CycloidTriangle Area Calculated via RotationParallelogram Translated to RectangleTrapezoid transformation to rectanglePythagorean Theorem trapezoid proof by President GarfieldPyramid MathSpiraling Squares - a.k.a. The Four Ants problemCircles on Octagonal grid with animated points/segmentsAnimated Box with vertices on circlesAbsolute value problem modelsPulsating Points - Frame of ReferenceStraight Line Motion Illusion - Frame of ReferencePythagorean Theorem proof by similar trianglesThree Intersecting CirclesHidden Equilateral TriangleCurious Corridors of NumbersPolar Vector ClockPolygons and Diagonals