A rectangle is a quadrilateral with 4 sides and 4 right angles. A square is a special form of rectangle, and it meets that criterion. But it is also equilateral, meaning its sides are all the same length (are all equal). It is a rectangle or a square. A square is a special type of rectangle with all sides having equal length. Here is a a nice chart showing the quadralaterals. http://content.answers.com/main/content/wp/en/f/f1/Quadrilateral_hierarchy.png
A quadrilateral where each angle is a right angle is known as an oblong.
It is a square or a rectangle where each interior angle is a right angle of 90 degrees.
A rectangle, or could be a square if lengths are the same.
A regular quadrilateral is a square and each angle is 90 degrees (i.e. a right angle).
A quadrilateral where each angle is a right angle is called a rectangle. In addition to having four right angles, a rectangle also has opposite sides that are equal in length. If all four sides are of equal length, it is specifically termed a square. Thus, all rectangles are quadrilaterals, but not all quadrilaterals with right angles are rectangles unless they also have equal opposite sides.
Quadrilateral means four sides. Four right angles and four sides is a rectangle and if the sides are equal length it is a square.
It is a square or a rectangle where each interior angle is a right angle of 90 degrees.
A rectangle or a square.
a square or a rectangle
That is called a rectangle.
A square or a rectangle
A rectangle, or perhaps a square.
A square or a rectangle
rectangle
A rectangle, or could be a square if lengths are the same.
Either a square or a rectangle
A regular quadrilateral is a square and each angle is 90 degrees (i.e. a right angle).
a quadrilateral where each angle is a right angle