Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...
Youngest Nick Jr. fans can learn colors, numbers and shapes with Colors, Counting, Shapes!: 15 Shaped Books in a Sorting Box! From the ""box,"" ""picture frame,"" and ""quilt"" on the spreads of ...