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.

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.

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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.

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A circle is defined as the set of all points equidistant from a fixed point on a plane. There are many circle formulas, such as the area of a circle formula, circumference formula, and diameter …

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 …