In quadrilateral MNOP, ZMZN. Which of a parallelogram, trapezoid, or rhombus could quadrilateral MNOP be? any of the three parallelogram only trapezoid only parallelogram or rhombus

Given:
In a quadrilateral MNOP,
[tex]\angle M=\angle N[/tex]To find:
The possible quadrilateral.
Explanation:
The two adjacent angles are equal.
The other two angles may be in the following cases.
Case i)
If all the angles are equal, the quadrilateral is a parallelogram.
Case ii)
If the other two are equal but not congruent