Observe tat pictures from the left side are flat.two dimensional shapes or plane figures because it only has the length and the width. Il con be composed of a straight line, Curved line, or both straight and curved lines. The pictures on the right side are ligures which do nolline liat on a plane. Space figures are often referred to as solids. These sold figures have three dimensions: length, width and height of thickness. The flat surfaces of a solid figure are its faces. Remember that sold figures have polygons as faces. The base is the lace on which the figure rests. The edge of a solid figure is the fine segment where two faces meel. A vertex (plural: vertices) is the corner that is formed where the ends of the line segments of two or more laces meel. Specifically, you can observe the numbers of loces, edges, and vertices, as well as the shape of the base​