False. If both pairs of opposite angles of a quadrilateral are congruent then the quadrilateral is a parallelogram.
For the quadrilateral to be a parallelogram, both pairs of opposite angles must be congruent.
If both pairs of opposite angles of a quadrilateral are congruent, then it is a parallelogram.
Yes
True
a parallelogram
false; if both pairs
A rectangle.
A parallelogram.
true
No, it doesn't have to be. A quadrilateral can definitely be a parallelogram only if: - Both pairs of opposite sides are parallel. - Both pairs of opposite sides are congruent. - One pair of opposite sides are both congruent and parallel. - Both pairs of opposite angles are congruent. - The diagonals bisect each other.
A quadrilateral with both pairs of opposite sides congruent is a parallelogram.