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Math Help - Pyhagorean Theorem

  1. #1
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    Pyhagorean Theorem

    I am getting the wrong answer in this problem
    I must find sin, tan, sec, cos, cot, csc
    The triangle - 2 on the adjacent and SQRT(3) is on the opposite and i must find the hypotenuse first
    Using the theorem A^2+B^2=C^2 i get
    (SQRT(3))^2+2^2=C^2
    for 3+4=7
    But the book says it is SQRT(21)

    any suggestions

    Thank you
    Last edited by Kromletch; January 31st 2011 at 08:11 PM.
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  2. #2
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    Are you sure it's not the hypotenuse that has a length of 2?
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    I am sure
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    Quote Originally Posted by Kromletch View Post
    I am getting the wrong answer in this problem
    I must find sin, tan, sec, cos, cot, csc
    The triangle - 2 on the adjacent and SQRT(3) is on the opposite and i must find the hypotenuse first
    Using the theorem A^2+B^2=C^2 i get
    (SQRT(3))^2+2^2=C^2
    for 3+4=7
    But the book says it is SQRT(21) ... if your side length info is correct, then the book answer is incorrect. It happens.
    ...
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