$\Delta ABC$ માં,જો $(a + b + c)(a - b + c) = 3ac$ હોય,તો

  • A
    $\angle B = 60^\circ$
  • B
    $\angle B = 30^\circ$
  • C
    $\angle C = 60^\circ$
  • D
    $\angle A + \angle C = 90^\circ$

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