A B C is a triangle in which /B =2 ...

`A B C` is a triangle in which `/_B` =2 `/_CdotD` is a point on `B C` such that `A D` bisects `/_B A C` and `A B=C D` . Prove that `/_B A C=72^0dot`

`144^(@)`

`36^(@)`

`72^(@)`

`98^(@)`

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