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7.78
11/sqrt(2)=7.78

If the length of a leg of a 45-45-90 right triangle is s, then the hypotenuse, h, is s*sqrt(2).

h=s*sqrt(2) --> s=h/sqrt(2) [This is just a special case of the Pythagorean theory.]

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โˆ™ 2013-03-25 17:25:54
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Q: A 45-45-90 triangle has a hypotenuse of length 11 What is the length of one of its legs?
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