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C is a point outside a crcle with centre A and radius r.
CB and CD are tangents whose length is "t"
find area of tri.BCD in terms of "r" and "t"
Dear ajinkya
cosx =r/√r2+t2
sinx =t/√r2+t2
AE =rcosx
BE =rsinx
area BDC =2 ΔBCE =2(ΔABC -ΔABE)
=2(rt/2 - 1/2 AE BE)
=rt3/(r2+t2)
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