A computer screen has dimensions 20 cm × 30Ÿcm. Axes are set up at the centre of the screen, as illustrated in Figure 5.5. A box containing an arrow has dimensions 2 cm × 2 cm and is situated with its centre at the point (–16, 10). It is first to be rotated through 45° in an anticlockwise direction. Find this transformation in the form

The rotated box is now moved to a new position with its centre at (16, –10). Find the overall transformation in the form

Figure 5.5