2. If A-B-C and Length OfAC=11, Length Of BC=6, then Length Of AB=?
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By P.T.
AC^2 = AB^2 + BC^2
= 11^2 = AB^2 + 6^2
= 121 = AB^2 + 36
AB^2 = 121-36
AB = √85
= 9.2
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