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July 23rd, 2013, 06:25 AM   #1
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Looking for a formula to calculate a chord length

I am sorry to post such a lame question to all you fine people, but you either know or you don't...and I don't.
What I am looking for is a formula that calculates the length X shown in the picture attached. I am given 'Y' dimension and Diameter 'D' only
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File Type: jpg rad.jpg (27.2 KB, 123 views)
rainycat is offline  
 
July 23rd, 2013, 08:44 AM   #2
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Re: Looking for a formula to calculate a chord length

Hello, rainycat!

Quote:


Code:
                A
              * o *
          *     |y    *
      B o - - - o - - - o C
       *  *    D|  x  *  *
            *   |   * r
      *       * | *       *
      *         o         *
      *         O         *

       *                 *
        *               *





Code:
          x
    D * - - - * C
      |     *
  r-y |   * r
      | *
      *
      O


[color=beige]. . . . . [/color]


Last edited by skipjack; July 31st, 2015 at 09:59 PM.
soroban is offline  
July 23rd, 2013, 11:50 PM   #3
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Re: Looking for a formula to calculate a chord length

Beautiful. Works a treat thank you, that's much appreciated.
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