31. Pythagorean Theorem By Rearrangement

Pythagorean Theorem By Rearrangement. Mathematical Droodle: What is it?
URL: http://www.cut-the-knot.org/Curriculum/Geometry/ArrangePyth.shtml - 20kb - 19 Jun 2006

32. Fagnano's Problem

Fagnano's Problem. Solution by L. Fejer
URL: http://www.cut-the-knot.org/Curriculum/Geometry/Fagnano2.shtml - 20kb - 19 Jun 2006

33. Angle Bisectors and Perpendiculars in a Quadrilateral

Angle Bisectors and Perpendiculars in a Quadrilateral
URL: http://www.cut-the-knot.org/Curriculum/Geometry/PerpBiInQuadri.shtml - 20kb - 19 Jun 2006

34. Iterations on Euler Lines

Iterations on Euler Lines
URL: http://www.cut-the-knot.org/Curriculum/Geometry/EulerToEuler.shtml - 21kb - 19 Jun 2006

35. Euler Line Cuts Off Equilateral Triangle

Euler Line Cuts Off Equilateral Triangle
URL: http://www.cut-the-knot.org/Curriculum/Geometry/Euler60.shtml - 21kb - 19 Jun 2006

36. A Circle Crosses A Triangle

A Circle Crosses A Triangle. Mathematical Droodle: What is it about?
URL: http://www.cut-the-knot.org/Curriculum/Geometry/CrossCircle.shtml - 22kb - 19 Jun 2006

37. Arithmetic in Disguise

Arithmetic in Disguise. Mathematical Droodle: What is it?
URL: http://www.cut-the-knot.org/Curriculum/Geometry/ArithDisguise.shtml - 23kb - 19 Jun 2006

38. Parallel Lines and Similar Triangles

Parallel Lines and Similar Triangles
URL: http://www.cut-the-knot.org/Curriculum/Geometry/ParallelLinesAndSimilarTriangles.shtml - 23kb - 19 Jun 2006

39. Cantor's Theorem

Cantor's Theorem. Mathematical Droodle: What is this?
URL: http://www.cut-the-knot.org/Curriculum/Geometry/CantorPoint.shtml - 23kb - 19 Jun 2006

40. Angle Bisectors and Perpendiculars in a Quadrilateral

Angle Bisectors and Perpendiculars in a Quadrilateral
URL: http://www.cut-the-knot.org/Curriculum/Geometry/PerpBiInQuadriSolution.shtml - 23kb - 19 Jun 2006

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