What type of geomentrey words describe a circle?

Geometry Words that describe a circle include "radius," which is the distance from the center to any point on the circle, and "diameter," which is twice the radius and spans across the circle through its center. Other relevant terms include "circumference," referring to the distance around the circle, and "chord," which is a line segment connecting two points on the circle. Additionally, "arc" describes a portion of the circumference, while "sector" refers to a region bounded by two radii and the arc between them.