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Math Help - The problem of finding the shortest distance of the figure

  1. #1
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    The problem of finding the shortest distance of the figure

    The problem of finding the shortest distance of the figure-maths-2.jpg

    I calculate the question by this formula: DH+HE+EF+FB
    I found the length of DH+FB by Pyth. theorem.
    Then, I got the total length of DH+FB is 16.4m
    DH+HE+EF+FB is equal to 16.4+19+9m =44.4m
    But the correct answer is C.
    Is the shortest distance= DH+HE+EF+FB(m)?
    Can anybody help me to solve this question? Thank you.
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  2. #2
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    Re: The problem of finding the shortest distance of the figure

    The shortest distance is DE+EB
    Use Pythagoras Theorem to find DE+EB=SQRT(625+36)+ SQRT(225+36)=SQRT(661)+SQRT(261)
    ANSWER IS 41.9
    Thanks from william24
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  3. #3
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    Re: The problem of finding the shortest distance of the figure

    Generally speaking, the shortest distance between any two points is a straight line. If there is something blocking that straight line, then the shortest distance is the closest you can get to this blockage to go around it. So I agree with Hemvanezi, the shortest distance is DE + EB. Alternatively, you could do DG + GB.
    Thanks from william24
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