Answers

2016-04-10T16:34:25+05:30
WE KNOW that sum of adjacent angles in parallelogram is 180°
 given one angle is 2/5 of adjacent angle 
so let one angle be X and another angle be 2X/5
   x+2x/5 = 180
   from this x= 128.57   
another angles are 128.57, 51.42,51.42

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