It is a square
There are 56 pairs of congruent angles.
Two different quadrilaterals have two pairs of parallel sides and have all their angles congruent. They are the square and the rectangle.
It is a rectangle.
If two lines are cut by a transversal to form pairs of congruent corresponding angles, congruent alternate interior angles, or congruent alternate exterior angles, then the lines are parallel.
quadrilateral--a four-sided figure, any length sides, any angles trapezoid--one pair of parallel sides, any length sides, any angles parallelogram--two pairs of parallel sides, opposite sides congruent, opposite angles congruent rectangle--two pairs of parallel sides, opposite sides congruent, all angles are right angles (90 degrees) rhombus--two pairs of parallel sides, all sides congruent, opposite angles congruent square--two pairs of parallel sides, all sides congruetn, all angles are right angles (90 degrees)
Both pairs of opposite sides are parallel + congruent, and both pairs of opposite angles are also congruent.
It is a parallelogram
It has 2 pairs of parallel sides and the opposite angles are congruent.
A square
an isosceles triangle
rhombus
A parallelogram is a quadrilateral with opposite sides parallel and congruent.