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Q.) In a triangle ABC, right angled at A, on the leg AC as diameter, a semicircle is described. If a chord joins A with the point of intersection D of the hypotenuse and the semicircle, then the length of AC equals to
[A]
AB * AD / (ABsq. + ADsq.)^.5
[B]
(AB * AD)/(AB+AD)
[C]
(AB * AD)^.5
[D]
(AB * AD)/(ABsq. -ADsq.)^.5
[A] AB * AD / (ABsq. + ADsq.)^.5
[B] (AB * AD)/(AB+AD)
[C] (AB * AD)^.5
[D] (AB * AD)/(ABsq. -ADsq.)^.5
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Circles 📚
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