Any polygon with 2n sides (n integer) where opposite sides are parallel, will have its opposite angles congruent.
* both pairs of opposite sides are parallel * both pairs of opposite sides are congruent * all angles are 90 degrees * both pairs of opposite angles are congruent * the diagonals bisect each other.
There are many such shapes. Any polygon with an even number of sides can have opposite sides that meet the above requirements.
If a quadrilateral has two pairs of opposite congruent sides, then the quadrilateral is a parallelogram.
There are 5 ways to prove a Quadrilateral is a Parallelogram. -Prove both pairs of opposite sides congruent -Prove both pairs of opposite sides parallel -Prove one pair of opposite sides both congruent and parallel -Prove both pairs of opposite angles are congruent -Prove that the diagonals bisect each other
A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.
A quadrilateral with both pairs of opposite sides congruent is a parallelogram.
A polygon with 2n sides (n>1) can have opposite sides congruent.
Diamond
Trapezoid.
2 pairs, the sides opposite each other are congruent to each other
* both pairs of opposite sides are parallel * both pairs of opposite sides are congruent * both pairs of opposite angles are congruent * one pair of opposite sides are parallel and congruent * both diagonals bisect each other * all consecutive angle pairs are supplementary
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 kite
Both pairs of opposite sides are parallel + congruent, and both pairs of opposite angles are also congruent.
Every parallelogram definitely has ... which includes squares, rectangles, andrhombussae ... and any polygon with an even number of sides can have.
rectangle