In the sketch below [math]ABCD[/math] is a square. You can move or change the size of the square by moving points [math]A[/math] or [math]B[/math] (in blue). [br][br]Draw in the two diagonals [math]AC[/math] and [math]BD[/math] and discover as many properties about them as you can (how they are related to each other and the square, where they meet, etc) and record them below.