A square or a rectangle
A right [angled] trapezium.
That is a rectangle.
a square which is a subset of rectangles
A rectangle is also a polygon, a parallelogram, and a quadrilateral with four right angles.
A four-sided polygon with all sides congruent and with four right angles is a square.
Four !
no, because a polygon with four right angles is a rectangle
A right trapezoid is a four-sided polygon with two right angles and two parallel sides.
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.
A square or a rectangle
Four equal sides and no right angles
a square...
A square has 4 right angles and 4 equal sides.
A polygon with four sides and four angles is a quadrilateral.
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.