Two adjacent angle of a parallelogram are in the ratio 4:5 . Then
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Angles are :
4x + 5x =180
9x = 180
x = 180/9
x = 20
Angles are (4×20)=80 and (5×20)= 120
4x + 5x =180
9x = 180
x = 180/9
x = 20
Angles are (4×20)=80 and (5×20)= 120
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