About 4,520,000 results
Open links in new tab
  1. Circle - Wikipedia

    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 …

  2. Circle - Math is Fun

    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.

  3. Circles - Formulas, Properties | What is a Circle? | Examples

    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.

  4. CIRCLE Definition & Meaning - Merriam-Webster

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

  5. Circles | Brilliant Math & Science Wiki

    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.

  6. What is a Circle? Definition, Formulas, Properties, 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.

  7. Circle Calculator

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

  8. CIRCLE | English meaning - Cambridge Dictionary

    CIRCLE definition: 1. a continuous curved line, the points of which are always the same distance away from a fixed…. Learn more.

  9. Circle - Math.net

    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 …

  10. Circle | Circle Geometry, Radius & Diameter | Britannica

    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 …