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Math Help - Geometry help please

  1. #1
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    Exclamation Geometry help please

    trying to find distance between 2 pts. using distance formula of
    (1,4) (5,1)
    I can get to the end of the problem, but the book says I'm wrong...

    The answer I'm getting is the square root of 45, but the book says the answer is 3 times the square root of five.

    due tommorow for school

    Please tell me what I'm doing wrong.

    thanks
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  2. #2
    o_O
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    But they're the same thing: \sqrt{45} \ = \ \sqrt{9 \cdot 5} \ = \ \sqrt{9}\cdot \sqrt{5} \ =  \ 3\sqrt{5}
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  3. #3
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    geometry help

    posted by dear john

    if the two points you listed are correct i.e. 1,4 and 5.1 the answer is 5
    distance between the points

    bj
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