diagonals AC and BD of quadrilateral ABCD intersect at O such that OB = OD. If AB = CD

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6. In Fig. 9.25, diagonals AC and BD of quadrilateral ABCD intersect at O such that OB = OD. If AB = CD, then show that: (i) ar (DOC) = ar (AOB) (ii) ar (DCB) = ar (ACB) (iii) DA || CB or ABCD is a parallelogram.
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6. In Fig. 9.25, diagonals AC and BD of quadrilateral ABCD intersect at O such that OB = OD. If AB = CD, then show that: (i) ar (DOC) = ar (AOB) (ii) ar (DCB) = ar (ACB) (iii) DA || CB or ABCD is a parallelogram. 6. In Fig. 9.25 diagonals AC and BD [...]
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Tags: 6. In Fig. 9.25 , diagonals AC and BD of quadrilateral ABCD intersect at O such that OB = OD. If AB = CD , then show that: (i) ar (DOC) = ar (AOB) (ii) ar (DCB) = ar (ACB) (iii) DA || CB or ABCD is a parallelogram. ,