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14-05-2018
Mathematics

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the adjacent angles of a parallelogram are in the ratio 2:1 find all the angles

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14-05-2018

Adjacent angles of a parallelogram are supplementary. let the common multiple be x
2x+x= 180
3x=180
x=180/3
so x=60
therefore the angles are :
2x= 2*60 =120
&x=60.
the required angle are 120°,120°,60,°60°

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