The angles of a cyclic quadrilateral are in the ratio 1:3:4:2.Find the measures of the angles is it a cyclic quadrilateral?why?
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let angles of cyclic quadrilateral be x
according to question the ratio of angle are 1:2:4:2
sum of angle will be 1x+2x+4x+2x=360
=>10x=360
=>x=36
angle A =36=x
angel B=108=3x
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