is a pair of adjacent angles of a parallelogram are in ratio 5 is to 7 then find other angles of the parallelogram
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let the angle be x
5x+7x =180
12x=180
x=180/12=15
the respective angles are 5×15, 7×15
then 65and105
5x+7x =180
12x=180
x=180/12=15
the respective angles are 5×15, 7×15
then 65and105
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