Answers

2016-02-11T18:36:55+05:30
OPPOSITE ANGLES ARE SUPPLEMENTARY AND ITS CONVERSE
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2016-02-11T18:57:06+05:30
A quadrilateral with its four vertices lying in a circle, then the sum of its opposite angles will be 180 degree. And its converse is like if the sum of two opposite angles is 180 degree in a circle then it is Cyclic.Hope it helps and pls mark as the best answer. :-)
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