The opposite sides of a quadrilateral are parallel.If one angle of the quadrilateral is 60°,find the other angles.
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"The opposite sides of a quadrilateral are parallel."
Then it must be a Parallelogram.
The opposite angle to the 60 is 60.
the adjacent angles is 120....[i.e.,180-60=120(the sum of adjacent angles is 180)]
therefore other three angles are 60,120 and 120
hope you will understand
Then it must be a Parallelogram.
The opposite angle to the 60 is 60.
the adjacent angles is 120....[i.e.,180-60=120(the sum of adjacent angles is 180)]
therefore other three angles are 60,120 and 120
hope you will understand
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