There is no opposite for a quadrangle, a typically square area or courtyard between buildings, as at a school.
Any quadrangle with two opposite angles which are 90 degrees.
Rhombus!
square
square
rhombus
Yes - since the definition of a parallelogram is "...a quadrangle with opposite sides and angles equal..."
Such a figure is called a trapezium (UK) or trapezoid (US).
Any parallelogram, including rhombus, but not including rectangle or square.
It is a kite, where the equal sides are adjacent to, not opposite, one another.
Draw a parallelagram this has the opposite sides parallel and no right angles
A trapezoid is a quadrangle.
No, but a parallelogram is a quadrangle.