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Thread: Given a square, circumscribe a semicircle around the square!

  1. February 2nd 2013, 01:10 PM #1
    Jammix
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    Given a square, circumscribe a semicircle around the square!

    A brief explanation on the steps too please !
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  2. February 2nd 2013, 04:48 PM #2
    Plato
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    Re: Given a square, circumscribe a semicircle around the square!

    Quote Originally Posted by Jammix View Post
    A brief explanation on the steps too please !
    Suppose that the square has sides of length 2S.
    The center is the mid-point of one the sides. Extend that side in both directions.
    The radius of the semicircle is \sqrt{5}~S.
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