Q6 of 87 Page 10

Mark the Correct alternative in the following:

In a ∆ABC, if (c + a + b) (a + b – c) = ab, then the measure of angle C is



ac + bc – c2 + a2 + ab - ac + ab + b2 - bc - ab=0


– c2 + a2 + ab + b2 =0


a2 + b2 – c2 = - ab


By Cosine law,






Option C

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