If one angle of a parallelogram is 90° and its adjacent sides are equal, it is a _________ .
If one angle of a parallelogram is 900 and its adjacent sides are equal, it is a
If one angle of a parallelogram is 90 degrees and it’s adjacent sides are equal, then it is a _______ .
If two adjacent angles of a parallelogram are equal, then it is a _______.