Quadrilateral

A square is a quadrilateral with four sides the same and where all four corners are right angles.

A parallelogram is a quadrilateral formed from two sets of parallel lines.

What kind of quadrilateral is it?

This quadrilateral has two right angles.

A quadrilateral is a geometric shape with four sides and four angles.

A quadrilateral is a geometric figure with four sides and four angles.

A trapezium is a quadrilateral with two parallel sides.

A quadrilateral with all positive abscissas but all negative ordinates would fall into quadrant IV of the Cartesian coordinate plane.

What's the difference between a quadrangle and a quadrilateral?

The area of a quadrilateral cannot be expressed as a function of its side lengths.