n Learning and Teaching Mathematics - Viviani's theorem - a geometrical diversion

Volume 2012, Issue 13
  • ISSN : 1990-6811


Viviani's theorem, named after the Italian mathematician and geometer Vincenzo Viviani (1622 - 1703), is a simple yet delightfully intriguing geometry theorem with a number of interesting extensions. Viviani's theorem states that for point inside an triangle the sum of the perpendiculars from that point to the sides of the triangle is equal to the length of the triangle's altitude.

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