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 …

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

This calculator computes the values of typical circle parameters such as radius, diameter, circumference, and area, using various common units of measurement.

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.

What is CIRCLE? CIRCLE, which stands for Crisis and Incident Response through Community-led Engagement, is a 24/7 unarmed response program that deploys trained teams to address …

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.

Circles are round shapes without any points, straight lines or angles – They don’t have to be perfectly round, though. There’s a lot to a circle – While circles may seem simple, there are 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 …

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 …

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.