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    Looking at my sketch am i looking for the right length or have i misunderstood the qs?Name:  15095390146452103825306.jpg
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    (Original post by Econowizard)
    Looking at my sketch am i looking for the right length or have i misunderstood the qs?Name:  15095390146452103825306.jpg
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    that is the correct method. does your answer match on of those given ?
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    (Original post by the bear)
    that is the correct method. does your answer match on of those given ?
    no i get 10+10 root 5 answer is 10 root 7
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    (Original post by Econowizard)
    no i get 10+10 root 5 answer is 10 root 7
    i managed to get √ ( 700 + 200 √ 3 )

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    (Original post by the bear)
    i managed to get √ ( 700 + 200 √ 3 )

    interesting but apparently wrong, what did you do?
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    (Original post by Econowizard)
    interesting but apparently wrong, what did you do?



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    perhaps they mean by "the outer surface" that you cannot use the base :dontknow:
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    (Original post by the bear)








    I agree with your answer, via that route, however, there is a shorter route - I get 10\sqrt{7}

    Attachment 700448
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    *watches the maths people work*

    *tries not to make any loud or sudden movements*
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    (Original post by ghostwalker)
    I agree with your answer, via that route, however, there is a shorter route - I get 10\sqrt{7}

    Attachment 700448
    yes i agree yours is shorter
 
 
 
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