A round or circular shape is defined by its consistent distance from a central point, known as the center. This shape is characterized by having no corners or edges, making it smooth and continuous. Common examples of circular objects include wheels, coins, and plates. In geometry, a circle is a two-dimensional figure where every point on its boundary is equidistant from the center. The distance from the center to any point on the circle is called the radius, while the full distance around the circle is known as the circumference. Circular shapes are prevalent in nature, such as in planets and bubbles.