Common Core MATH 1 G 2 Grade 1 Geometry Reason With Shapes And Their Attributes
BackGeometry: Reason With Shapes And Their Attributes.
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.4