Move the shape of the peaks to create different quads . Is it possible to make a square that is not also a rectangles ? A diamond that is not also a parallelogram ? Why? Drag the vertices to create ...

So who have we got here then? Oh of course, the Square, hi. Rectangle, who you doing? Rhombus, always a pleasure. Parallelogram, charmed. Kite! Looking great. And Trapezium, what a legend.