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what are r1 , r2 & r3 represented for?
how can we use sine rule in other triangles?
Dear nithin
r1 represent the radius of circle that is tangent to qpposite side and also tangebt to exended side as shown in diagram
similerly r2 and r3 .
let lenghth of side aposite to angle A,B,C are a,b,c respectivily
then sine rule is
Sin A /a =SinB /b =Sin C /c
Regards
Badiuddin
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