Any non-equiangular parallelogram, and any regular polygon
with an even number of sides more than 4.
Adjacent sides are perpendicular. Opposite sides are parallel.
A rhombus (4 congruent sides, diagonals perpendicular)that is not also a square (no right angles), andis also a parallelogram (opposite sides parallel and congruent, opposite angles congruent). It is also a quadrilateral, which has 4 sides.
Yes. The basic definition for a rectangle is 4 sides, four right angles(perpendicular), and opposite sides are congruent.
The question asks about four sides and 2 perpendicular sides. That makes 6 sides in all. So it is a hexagon with either only one right angle, or two sides that are mutually perpendicular.
Yes. Squares only contain 90 degree angles, so all sides are perpendicular to the adjacent sides and parallel to the opposite one.
any rhombus
A parallelogram is a four sided shape where opposite sides are parallel and equal lengths. If you mean that ALL sides are equal lengths, you are looking for a rhombus.
A Diamond. /\ / \ / \ / \ \ / \ / \ / \/
Aquadrilateral that is called a rectangle has by definition 4 right angles (all sides are perpendicular to their neighbors) and opposite sides that are equal in length and parallel.
A square
It is a square
All squares have TWO SETS of opposite, parallel sides. A square is a parallelogram with 4 equal sides and 4 equal angles (right angles) of which adjacent sides are perpendicular. The related parallelogram, the rhombus, or "diamond" shape, also has 4 equal sides, but no right angles, where opposite angles are equal and adjacent angles are supplementary (sum to 180 degrees).