a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
A rectangle.
a square
square
A square or maybe a rectangle as well would fit the given description
A 4 sided polygon is called a quadrilateral. Depending on where the two right angles are, would put the quadrilateral into different subsets. For example if the two right angles are on adjacent corners (and the other 2 angles are not right angles), then it is a trapezoid. If the 2 right angles are in opposite corners, and the other 2 angles are not right angles then it would be a kite-shaped quadrilateral.
A square.
A rhombus is a 4 equal sided quadrilateral with equal opposite acute angles and equal opposite obtuse angles with diagonals that bisect each other at right angles.
Square
I am a rectangle.
It is a quadrilateral whose opposite sides are parallel and has no right angles
polygon
a pentagon
a rhombus, a quadrilateral without right angle, a quadrilateral with equal opposite parallel sides but no right angles
Two opposite right-angles, whose corners share the same crossing point, are vertical angles.
A parallelogram is a quadrilateral whose opposite sides are parallel and has no right angles
A square