No. In fact they are almost NEVER congruent.
No. A square has two pairs of congruent angles!
Rectangle
Only the two angles which are connected by the shorter diagonal will be congruent. The other two angles will not necessarily be congruent.
Four.
No. In fact they are almost NEVER congruent.
4 congruent pairs
A parallelogram has two pairs of congruent sides, and the opposite sides are congruent.
A parallelogram has two pairs of opposite congruent lines
A parallelogram has two pairs of congruent sides.
This is a parallelogram. The first requirement is 2 pairs of congruent sides where the congruent sides are not adjacent. This is like a rectangle (excluding a square) that has two pairs of congruent sides where the congruent sides are not adjacent. But the angles are not all congruent (as set in the question) which pushes the shape into the "next less regular" shape, the parallelogram. The angles will not all be congruent, but it will have 2 pairs of congruent angles. There is no way to avoid the 2 pairs of congruent angles because of the requirement that the shape must have 2 pairs of congruent sides (the first requirement).
If the parallelogram is a square then angle A is congruent to angle B ,is congruent to angle C. AB is congruent to BC is congruent to CD.
A rectangular prism has 3 pairs of congruent faces
A rectangle has 4 congruent angles. 90 degrees. It is also a parallelogram, 2 pairs of congruent sides.
Yes, both pairs of opposite angles in a parallelogram are congruent.
A quadrilateral with both pairs of opposite sides congruent is a parallelogram.
A parallelogram has two pairs of congruent sides.