Geometry from the Land of the Incas. Problems, theorems, proofs, quizzes, with animations and sounds. Euclidean Geometry. <body> <p>Presents geometry problems, with proofs, animation and sound. Also, Inca Geometry (Cuzco, Machu Picchu, Incan Quipu, Nazca Lines, Lord of Sipan); quotes from Descartes, Galileo, Newton, Pappus, Plato, Poincare, Voltaire; and quizzes. Inca Geometry (Cuzco, Machu Picchu, Incan Quipu, Nazca Lines, Lord of Sipan) </p> </body>