In ` A B C ,=`if `(a+b+c)(a-b+c)=3a c ,`then find `/_Bdot`A. `angleB=3 – InterviewSolution

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1.	In ` A B C ,=`if `(a+b+c)(a-b+c)=3a c ,`then find `/_Bdot`A. `angleB=30^(@)`B. `angleB=60^(@)`C. `angleB=100^(@)`D. `angleB=90^(@)`
Answer» Correct Answer - B

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