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  Category:Simson line – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:simson_line?uselang=de

  Keine Beschreibung vorhanden.

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  "circumscribed triangle" - Google-Suche

  http://images.google.com/images?hl=de&um=1&sa=1&q=%22circumscribed+triangle%22&btnG=Bilder-Suche&aq=f&oq=

  Keine Beschreibung vorhanden.

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  The Journal of the Indian Mathematical Society - Google Books

  http://books.google.de/books?ei=WGU_UsGEAeqQ0QW_koCwAw&id=bxVbAAAAYAAJ&dq=journal+of+the+indian+mathematical+society&q=on+the+in

  Vols. for 1923-32 include separately paged sections "Notes and questions" amd "Progress report." Beginning in 1933 "Notes and questions" is continued in the Mathematics student.

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  Fallacies in Mathematics - E. A. Maxwell - Google Books

  https://books.google.de/books?id=zNvvoFEzP8IC

  As Dr Maxwell writes in his preface to this book, his aim has been to instruct through entertainment. 'The general theory is that a wrong idea may often be exposed more convincingly by following it to its absurd conclusion than by merely announcing the…

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  Category:Circle geometry – Wikimedia Commons

  https://commons.wikimedia.org/wiki/Category:Circle_geometry?uselang=de

  Keine Beschreibung vorhanden.

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