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- DictionaryCir·cle/ˈsərk(ə)l/
noun
- 1. a round plane figure whose boundary (the circumference) consists of points equidistant from a fixed point (the center): "draw a circle with a compass"
- 2. a group of people with shared professions, interests, or acquaintances: "she did not normally move in such exalted circles"
verb
- 1. move all the way around (someone or something), especially more than once: "we circled around the island"
Learn the meaning of circle as a noun and a verb, with synonyms, examples, and word history. See also related phrases and entries near circle.
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A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. The distance between any point of the circle and the centre is called the radius. The circle has been known since before the beginning of recorded history. Natural circles are common, such as the full moon or a slice of round fruit.
A circle is a round-shaped figure that has no corners or edges. Learn the definition, parts, formulas, examples and practice problems on circle geometry at Splashlearn.
- Only one circle can be drawn passing through two given points.
- Two equal parts, each part is called a semicircular region.
- The different parts of a circle are radius, diameter, chord, secant, tangent, minor arc, major arc, minor segment, major segment, minor sector, and...
- c = 2$\pi$r, where c is the circumference and r is the radius.
- Concentric circles are circles having the same center.
Learn the meaning of circle as a shape, a group, or a verb, with examples and idioms. Find out how to pronounce circle and see translations in different languages.
Learn what a circle is, how to calculate its area, circumference, and other related measures, and explore its properties and formulas. See examples, worksheets, and FAQs on circles in geometry.
What is a basic definition of circle? In geometry, a circle is a perfectly round shape—meaning any point around its curve is the same distance from its central point. Circle commonly refers to anything that’s approximately shaped like this, even if it’s not a perfect circle in geometric terms.
Learn what a circle is, how to draw it, and how to calculate its area and circumference. Explore the parts, properties, and formulas of circles with video lessons and examples.