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lesner19 , I agree, one measurement is mismarked. Whether you use one step or two to get the length of the space diagonal, though, the answer is the same because both depend on three distinct lengths.
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Re: What is the greatest possible straight-line distance, in centimeters, [#permalink]

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05 Dec 2017, 10:45

Formula for the diagonal of a rectangular box is always:

\(\sqrt{a^2+b^2+c^2}\)

Therefore it is just -

= \(\sqrt{10^2 + 10^2 + 20^2}\)

= \(\sqrt{100 + 100 + 400}\)

= \(\sqrt{600}\)

= 10\(\sqrt{6}\)
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Bunuel-I think bottom 10 and top 20 reflect the same length and are incorrectly placed-can you please confirm/correct?

Thanks

Yes, 10, 10 and 20 are width, breadth and length of the rectangle.

I think you did not understand my point-please see the figure. Bottom 10 and top 20 seem to reflect the same dimensions whereas they should be different.

I think you did not understand my point-please see the figure. Bottom 10 and top 20 seem to reflect the same dimensions whereas they should be different.

It's clear that the figure has a typo in it but it's obvious what the question means.
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Re: What is the greatest possible straight-line distance, in centimeters, [#permalink]

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15 Dec 2017, 01:28

Bunuel wrote:

KS15 wrote:

I think you did not understand my point-please see the figure. Bottom 10 and top 20 seem to reflect the same dimensions whereas they should be different.

It's clear that the figure has a typo in it but it's obvious what the question means.

Well if it were clear, then 2 people would not be raising this point-Also, I wasted a few minutes trying to figure out how the width can be both 10 and 20-so it is certainly not obvious .

I think you did not understand my point-please see the figure. Bottom 10 and top 20 seem to reflect the same dimensions whereas they should be different.

It's clear that the figure has a typo in it but it's obvious what the question means.

Well if it were clear, then 2 people would not be raising this point-Also, I wasted a few minutes trying to figure out how the width can be both 10 and 20-so it is certainly not obvious .

Archived the question. Thank you very much for valuable input.
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