Natural circles are common, such as the full moon or a slice of round fruit. The circle is the basis for the wheel, which, with related inventions such as gears, makes much of modern machinery possible. In …

A circle is easy to make: Draw a curve that is radius away from a central point. And so: All points are the same distance from the center.

A circle is a 2-dimensional closed shape that has a curved side whose ends meet to form a round shape. Learn about circles with concepts, properties, and examples.

A circle is a two-dimensional closed figure that has no edges or corners. Learn the definition of circle, different parts of circle, solved examples and more.

The meaning of CIRCLE is ring, halo. How to use circle in a sentence.

The circumference (meaning "all the way around") of a circle is the line that goes around the center of the circle. Mathematicians use the letter for the length of this line.

Dec 2, 2025 · Today, we’re proud to introduce Circle Foundation, a new philanthropic initiative dedicated to advancing financial resilience and inclusion in the US and around the world.

Dec 5, 2025 · A circle is a round plane figure with a boundary (called the circumference) that is equidistant from its center. It is a fundamental object studied in geometry.

Nov 14, 2025 · Circle, geometrical curve, one of the conic sections, consisting of the set of all points the same distance (the radius) from a given point (the centre). A line connecting any two points on a …

The set of all points in a plane that are equidistant from a fixed point, defined as the center, is called a circle. The circle above is called circle O. A line segment with two endpoints, one on the center and …