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9Â years, 1Â month ago
sides of cyclic quadrilateral are 9,10,12 and 16.if one of its diagonal is 14.find the other diagonal?
9Â years ago
For every cyclic quadrilateral ABCD,
AC X BD = [AB X CD] + [AD X BC]
so 14 X BD = 9 X 12 + 10 X 16
14 X BD = 108 + 160
BD = 268 / 14
BD = 19.1428
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