Simple question; tricky answer

Discussion in 'Physics & Math' started by Steve100, Aug 24, 2014.

  1. Steve100 O͓͍̯̬̯̙͈̟̥̳̩͒̆̿ͬ̑̀̓̿͋ͬ ̙̳ͅ ̫̪̳͔O Valued Senior Member

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    Find the radius of the circle
    View attachment 7290

    While the answer is immedieately obviouse to me, actually working it out was more difficult.

    What is the simplest, or even most complex way to work it out?

    I'll share my method later on.
     
    Last edited by a moderator: Aug 29, 2014
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  3. mathman Valued Senior Member

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    Link didn't work.
     
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  5. origin Heading towards oblivion Valued Senior Member

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    With no information and with a link to nothing, the problem is indeed quite difficult...:bugeye:
     
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  7. danshawen Valued Senior Member

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    Last edited: Aug 25, 2014
  8. Dinosaur Rational Skeptic Valued Senior Member

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    The equation at the link provided has two solutions: 1 & 5

    1 is a solution which does not match the diagram, leaving 5 as the correct answer.
     
  9. danshawen Valued Senior Member

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    Let's see if that works:

    (5-2)^2 + (5-1)^2 = (9+16) = 5^2 = 25. Yep. radius if 5 alright.

    I was trying to use the quadratic equation. Goofed. Thanks.
     

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