image
Figure 19.8: Figure 19.8 Results of various motions applied to a blue-edged rectangle and its interior, (a) the original rectangle and interior; (b) 50% reduction (not a rigid motion); (c) shearing (not a rigid motion); (d) quarter-turn; (e) half-turn; (f) reflection along the vertical line down the middle; (g) reflection along a diagonal line.