Two<span> Dimensions: A flat plane or shape is </span>two-dimensional<span>. Its </span>two<span> dimensions are length and width. Polygons, such as squares and rectangles, are examples of </span>two-dimensional<span> objects. ... Cubes, prisms, pyramids, spheres, cones, and cylinders are all examples of </span>three-dimensional<span> objects.</span>
