Three angles of a quadrilateral abcd are equal. Is it a parallelogram?? Why and why not???
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yes it's a parallelogram in the case if the three angles are 90 degree.
If not then it is not a parallelogram.
because is three angles are 90 degree then obiously fourth angle is 90 degree and its opposite angles are equal
If not then it is not a parallelogram.
because is three angles are 90 degree then obiously fourth angle is 90 degree and its opposite angles are equal
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