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The perimeter of a square is 48 inches. What would be the length, in inches, of its diagonal?

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    Any clues as to what maths you might know which might help you to answer this? Have you tried drawing a diagram?2012-03-30
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    Can you find the length of a side of this square? Assuming you can do this, the diagonal will be the hypotenuse of a right triangle . . .2012-03-30
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    48:4=12, 12 inch. is each side of the square. Now use Pythagorean theorem to compute the diagonal.2012-03-30
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    I picked this question from my GRE Book which has answer on it. But answer which i received is differing from Book Answer2012-03-30
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    In a case such as you described (Medex, comment #4), what you want to do is tell how you solved the problem (and give the specific answer you got), then give the different answer from the Book Answer (and say that it's the Book Answer), and then ask if the Book Answer is wrong or if you're wrong (could be both, of course), and if you're wrong, what your mistake(s) is (are).2012-03-30
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    If the perimeter is 48, it's not hard to find the lengths of the sides. Then use the Pythagorean theorem.2012-03-30

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