rectangle
You are a rectangle?
a rectangle
a rectangle?
You are a rectangle
A rectangle.
what is a quadrangle that has 4 right angles and is not a square!
square
A rectangle
Either a square or a rectangle.
That's a rectangle (possibly a square). If two sides are parallel, and all angles are right angles, then the other two sides must be parallel also.
rectangle
Any quadrangle with two opposite angles which are 90 degrees.