a set of geometric shapes usually a triangle or a square can be composed of multiple concentric circles or rectangles usually has a central point or origin can be measured in angles, degrees, or increments of a circle can be used to measure distances and angles
increment which is a set of geometric shapes increment which has usually a triangle or a square increment which can be composed of multiple concentric circles or rectangles increment which has usually has a central point or origin increment which can be measured in angles, degrees, or increments of a circle increment which can be used to measure distances and angles