Drag each of the following numbers of squares together so that they are all touching side by side. Record the possible perimeters of the figures obtained in the table.[br](a) [b]3[/b]; (b) [b]4[/b]; (c) [b]5[/b]; (d) [b]6[/b]; (e) [b]7[/b]; (f) [b]8[/b]; (g) [b]9[/b].

Anthony Or. GeoGebra Institute of Hong Kong.