Chú thích Tam giác vuông

  1. ↑ Voles, Roger, "Integer solutions of a − 2 + b − 2 = d − 2 {\displaystyle a^{-2}+b^{-2}=d^{-2}} ," Mathematical Gazette 83, July 1999, 269–271.
  2. ↑ Richinick, Jennifer, "The upside-down Pythagorean Theorem," Mathematical Gazette 92, July 2008, 313–317.
  3. ↑ Di Domenico, Angelo S., "A property of triangles involving area", Mathematical Gazette 87, July 2003, pp. 323-324.