a rectangle
a square or a rectangle
A parallelogram is a four sided polygon with opposing parallel sides of equal length. Then if it has four right angles, the polygon becomes a rectangle.
no, because a polygon with four right angles is a rectangle
A square or a rectangle
A four-sided polygon with four right angles is a rectangle. If the four sides are congruent, it is a special case of a rectangle called a square.
That is a rectangle.
A rectangle is also a polygon, a parallelogram, and a quadrilateral with four right angles.
square or rectangle.
It could be an irregular polygon with 5 or more sides or a rectangle or square.
For a figure to be a square, it must have four congruent sides and four right angles. For a figure to be a rectangle, it only has to have four right angles.
A rectangle is a four sided polygon with four right angles and two pairs of parallel side. [Equal sides is not required since it is implied by parallel and right angles].