9. In the adjoining figure, ABCD is a quadrilateral Dand AC is one of – InterviewSolution

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1.	9. In the adjoining figure, ABCD is a quadrilateral Dand AC is one of its diagonals. Prove that(i) AB+ BC+ CD+ DA 2AC(ii) AB+ BC+CD> DA(ii) AB+BC+CD+ DA> AC+ BD.
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