ABCD is a square. BO and CO meet at O such that angle OBC =angle OCB =15°. Prove that ∆AOD is equilateral.[Note: AC and BD are not diagonals.]. Created by aryan014.

>[Note: AC and BD are not diagonals.]...

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ABCD is a square. BO and CO meet at O such that angle OBC =angle OCB =15°. Prove that ∆AOD is equilateral.<br />[Note: AC and BD are not diagonals.]