Can you show me a quadrilateral with one right angle?

I don't know what the name of it is but I can draw it.......It's something like that

|---------------\
| \
| \
| \
| \
| \
|--------------------\

CORRECTION

Apart from the fact that this browser does not allow multiple spaces, the above diagram, if correctly viewable, would have TWO right angles - at the top left and bottom left.

The solution is simply to tilt the top line so that it is not horizontal, though not so much that the angle at top right becomes a right angle.