Standard(s):
[MA2019] (0) 20 : 20. Identify shapes as two-dimensional (lying in a plane, "flat") or three-dimensional ("solid").
[MA2019] (0) 21 : 21. Analyze and compare two- and three-dimensional shapes, in different sizes and orientations, using informal language to describe their similarities, differences, parts (number of sides and vertices or "corners"), and other attributes.
Example: Having sides of equal length.
[MA2019] (1) 22 : 22. Compose two-dimensional shapes (rectangles, squares, trapezoids, triangles, half-circles, and quarter-circles) or three-dimensional shapes (cubes, right rectangular prisms, right circular cones, and right circular cylinders) to create a composite shape, and compose new shapes from the composite shape.