This document defines and describes basic geometric shapes including points, lines, planes, angles, triangles, quadrilaterals, circles, cylinders, spheres, cones, and polygons. Points have no size, lines extend forever and have no thickness, planes extend forever and have no thickness. Angles are formed by two rays with a common endpoint. Triangles, pentagons, hexagons, squares, rectangles, trapezoids, parallelograms, rhombuses, and octagons are defined as polygons with a certain number of sides and properties. Circles are sets of points equidistant from the center, cylinders have two circular bases, spheres are sets of points equidistant from the center, and con
