Most dams are curved which complicates calculating their volume.[br][br][b]Exercise[/b][br]Let us assume that this dam is made of rubber so we can deform it into straight dam.[br]Click on point A and use the arrow keys to move A in order to shape a straight dam.[br]Once you have managed to move A to position (46|16) you will see a number of cuboids. Vary the number of cuboids and watch the approximation of the volume.