A quadrilateral with congruent pairs of adjacent sides and no parallel sides is a kite.
No. It is the opposite sides of a regular octagon that are parallel and congruent.
Kites have two pair of adjacent sides that are congruent. The opposite sides are not parallel.
obtuse
Any regular polygon.
a parallelogram.
A quadrilateral with congruent pairs of adjacent sides and no parallel sides is a kite.
No. It is the opposite sides of a regular octagon that are parallel and congruent.
Yes.
Kites have two pair of adjacent sides that are congruent. The opposite sides are not parallel.
yes, but the sides that are congruent are also adjacent. That is, they are next to each other. Not like in a rectangle where the congruent sides are parallel.
obtuse
a square
Any regular polygon.
Square
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).
A trapezoid with two congruent, opposite sides is an isosceles trapezoid.