If only two sides of one figure are congruent to two sides of another figure, you can say nothing about the opposite angles.
A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.
It is a Rhombus.
Yes, the opposite sides of a parallelogram are congruent.
A polygon with 2n sides (n>1) can have opposite sides congruent.
A square's opposite sides are parallel and all the sides are congruent.
The Opposite Sides Parallel and Congruent Theorem states that if a quadrilateral has a pair of opposite sides that are parallel and congruent, then the quadrilateral is a parallelogram.
A parallelogram is a quadrilateral (four-sided figure) in which both pairs of opposite sides are parallel. You can check for that, specifically. As an alternative, you can check for any of the following conditions: * Opposite angles are congruent * Opposite sides are congruent
Yes. A parallelogram has congruent opposite sides as well as congruent opposite angles.
It is a rectangle or a square.
A parallelogram, and any polygon with 180 degree rotational symmetry.