For 1-6, determine whether each quadrilateral is a parallelogram. 2. 3. 118 62 82 2. 118 3. 5. 4. 5. 6.

Initially we are giving some points to know how to check whether the given quadrilateral is a parallelogram or not.

Point 1

If two pairs of opposite sides are parallel then the given quadrilateral is a parallelogram

2) if two pairs of opposite sides are equal then the quadrilateral is a parallelogram

3) if one pair of opposite side both parallel and equal then the quadrilateral is a parallelogram.

4) if two pairs of opposite angles are equal then the quadrilateral is a parallelogram

5) if one angle is supplimentary to both consecutive angles then the quadrilateral is a parallelogram

6) if diagonals of the quadrilateral is bisects each other then the quadrilateral is a parallelogram