a square or a rectangle
A square or a rectangle
It could be a kite, an arrowhead or an irregular quadrilateral with a right angle - which has no specific name.
A Square and a Rectangle. NOT a parallelogram, nor a rhombus, nor a kite. nor a trapezium.
Some trapezoids, not all.
a quadrilateral can have from 0 to 4 right angles. But it can't have exactly three right angles. The interior angles of a quadrilateral sum to 360 degrees. If it had three right angles and x were the measure of the fourth angle: 3*90+x=360 x=360-270=90 So if it has three right angles, the fourth angle would be a right angle as well.
It is a square or a rectangle where each interior angle is a right angle of 90 degrees.
A rectangle or a square.
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
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.