In a game of lawn chess, where pieces are moved between the centers of squares that are each 1.00 m on edge, a knight is moved in the following way:
(1) two squares forward, one square rightward;
(2) two squares leftward, one square forward;
(3) two squares forward, one square leftward. What are
(a) the magnitude and
(b) the angle (relative to "forward") of the knight"s overall displacement for the series of three moves?