cas-B-sinB = (When B = 309)
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Step-by-step explanation:
asinA=bsinB ...(1)
As we know from the sine rule,
i.e asinA=bsinB=csinC=k (say)
sinA=ka, sinB=kb
Put the above values in eq (1)
aka=bkb
a2=b2
a=±b
as side can't be negative
a=b
A triangle having two sides equal is Isosceles.
Hence, option (A) is correct.
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