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Need to find the diagonal of a rectangle. Problem is 5' 3 1/2" x 12' 5 1/4". Do I need to convert the fractions to a decimal? I understand to (a)2 x (b)2 = (c)2. The inches with fraction is my problem! thanks

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Ra4942 ,

Yes, you would have to convert the fractions into decimal notation, represented as feet.
Example: 5' 3 1/2" is 5.29167'

By the way, the formula (that you know) is "plus", not "times" ....
a^2 plus b^2 = c^2 (the square of the hypotenuse is the SUM of the squares of the two other sides)

Thanks for using FixYa!

-Gort.

Posted on Oct 14, 2010

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