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Prop. 14 II Euclid Question

  1. Feb 1, 2012 #1
    We are given that ABCD is a rectangle and AE is the diameter of the circle, and BFGH is a square. I want to figure out how to show that ABCD has the same area as BFGH. Where do I even begin? (see attached picture)
     

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  2. jcsd
  3. Feb 1, 2012 #2

    lavinia

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    The only thing you have to go on is the BE equals BC.

    Note that if x = sin(a) then b = 1 - cos(a)
     
    Last edited: Feb 1, 2012
  4. Feb 2, 2012 #3
    prove that measure x equals the square root of a times b. complete the circle and extend line BF through the completed circle.
     
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