Q12 of 25 Page 627

In any ΔABC, prove that


Need to prove:


We know that, where R is the circumradius.


Therefore,


a = 2R sinA ---- (a)


Similarly, b = 2R sinB and c = 2R sinC


Now,


⇒


⇒


⇒


⇒


⇒


⇒


⇒


⇒ [Proved]


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