Can you draw a trapezoid with two right angles?
Take a rectangle, stand it on its end (“long” side up) and then slash it across the top with a sharp sword so you cut off a shape that is not a rectangle. That leaves a shape that is not a rectangle, but has two right angles at the base, one for each side. The shape you have is a trapezoid (just as the one you cut off is), and the two sides are parallel. Use the link below to check out some other things.
