What kind of triangle has 4 right angles

My teacher was showing us how to draw a triangle with 4 right angles, everyone drew theirs and we even counts the angles, everyone understood what was happening except me.. could someone please explain?

Your Teacher and fellow class mates are HIGH. There no-way possible for a triangle to have four right angles.A square has four right angles.

A triangle with four right angles sounds more like a square. Triangles are called triangles because they have three angles not four. So it was a square not a triangle that was drawn.

EDIT: Are you sure it was listed as a triangle? If i can think of anything that it might be is a pyramid. But even that seems odd. Maybe if we could get more information about what class your taking we could be more help.

EDIT2: Ok if these shapes are newly invented and undiscovered then 1) How do you expect anyone to actually know about this other than you, your teacher and your fellow class members? 2) Why dont you ask one of them and not Yahoo! Answers? To be honest it sounds like your a troll and are just asking stupid questions to annoy people. If you really want this question answered you need to give us a picture of said "triangle with 4 angles" otherwise it exists only as a square.

It would have to be a 3 dimensional right triangle. So like a right triangular prism.

triangles only have 3 angles.....

there is none