Question

can quadrilateral pqrs be a parallelogram the following cases
1)if angle P + Q = 180 degree
2) if PQ = RS = 6 cm and PR = QR = 4 cm​

Answer 1

Answer:

Yes, it can parallelogram. As we know that opposite sides of parallelogram is equal and sum of its adjacent angles be 180 degrees.

Answer 2

Answer:

yes aquadrilateral has its cointerior angles