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A polygon with 2n sides (n>1) can have opposite sides congruent.
Trapezoid.
* 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.
Every parallelogram definitely has ... which includes squares, rectangles, andrhombussae ... and any polygon with an even number of sides can have.
A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.
Of the quadrilaterals: a square, a rectangle, a parallelogram and a rhombus
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.