A circle is a fundamental geometric shape. It consists of all points that are exactly the same distance from a central point. This distance is called the radius. The center is the fixed point, and every point on the circle is equidistant from this center.
A circle has several important elements. The radius extends from the center to any point on the circle. The diameter is a line that passes through the center, connecting two points on the circle. The circumference is the total distance around the circle. A chord is any line segment connecting two points on the circle. An arc is a portion of the circumference between two points.