All physical objects or things that exist in a state of matter are in a geometrical shape. Some are simple and others are complex.
Natural objects range from smooth/curved to straight and angled. All physical objects/bodies are made up of the primary solids the same way that all colors are made up of the primary three.
Circle - All round and curvy objects fall under this category.
Square - Rectangles, squares and other box like shapes fall under here.
Triangle - A three sided shape which is the basis of spikes or angled shapes.
Sphere - A perfectly round shape of any size.
Cube - A three dimensional square shape with six faces, and eight edges. You can elongate them to make a rectangle.
Pyramid - A flat base and edges which lead to a top, central point. The base can be circular, triangular, square or any other geometry.
Cylinder - An elongated circle with a flat top and bottom and rounded body. Barrel shaped.