The applet shows how to calculate approximately and exactly the volume of a pyramid.[br][br][b]Exercise[/b][br]Show the cuboids and vary the number of partitions.[br]Observe how the sum of the finitely many cuboids in row 3 changes.[br]Note the limit of the finitely sum in row 5 and the integral in row 8.[br][br]If you wish you can vary the dimensions of the pyramid.