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Three Ways to Put a Square in a Triangle (Posted on 2016-02-26) Difficulty: 3 of 5
Every triangle has a square which is the maximum size square which can be inscribed in the triangle. For most triangles there is only one way to do so. For an equilateral triangle there are three ways to inscribe the square - one for each side.

The equilateral is not the only triangle with that property; there is one other triangle whose maximum inscribed square can be placed on all three sides. Determine the dimensions of that triangle! (Assume the shortest edge is 1 unit.)

  Submitted by Brian Smith    
Rating: 4.0000 (2 votes)
Solution: (Hide)
The triangle is known as Calabi's Triangle. It is an obtuse isosceles triangle whose ratio of base:leg is 1.55138752454:1. The value 1.55138752454 is the largest real root of f(x) = 2x^3 - 2x^2 - 3x + 2.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): My solutionJer2016-02-27 22:35:46
re: My solutionbroll2016-02-27 22:16:56
SolutionMy solutionJer2016-02-27 12:46:15
Solutionre: Haha.broll2016-02-27 07:47:04
Some ThoughtsHaha.broll2016-02-27 06:36:01
Bad guessSteve Herman2016-02-26 18:03:59
re: A guess and a questionBrian Smith2016-02-26 13:47:52
QuestionA guess and a questionSteve Herman2016-02-26 13:19:24
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