Answer:
1.Parallelogram
2.Not Paralleglogram
3.Not Parallellogram
4.Parallelogram
5.Parallelogram
Step-by-step explanation:
1.This is a paralleglogram,since the opposite sides are parallel.and the diamonds divide each other in half.
2.Only one pair of opposite sides of parallel.
This is not parallel.
3.Only on Pair of opposite sides of parallel.
This is not parallel.
4.A pair of opposite sides are parallel and equal.
The sum of one-sided angle is 180°.
This is a parallelogram.
5.Opposite sides are equal and opposite angles are equal.
This is a parallelogram.
