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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"
In Maths or Geometry, a circle is a special kind of ellipse in which the eccentricity is zero and the two foci are coincident. A circle is also termed as the locus of the points drawn at an equidistant from the centre. The distance from the centre of the circle to the outer line is its radius.
- Circles - Radius and Diameter. In order to describe the shape of an object, we give the object appropriate dimensions. For example, a rectangle can be described with its height and width.
- Circles - Circumference. The formula for the circumference of a circle is. \\[\\pi d = 2 \\pi r,\\] where \\(d=\\text{(diameter of the circle)},\\) \\(r=\\text{(radius of the circle)},\\) and \\(\\pi\\) is the mathematical constant, "pi."
- Area of a Circle. The area of a circle with radius \\(r\\) is \\(\\pi r^2\\). \\ (_\\square\\) This is proven by dividing a circle into even parts. and then rearranging them into a crooked parallelogram.
- Circles - Arc Length. Arc length of a circle is the length of the curved part. Arc length of a full circle is its circumference, but what about the arc length of sectors (pieces of circles)?
- Definition
- Parts and Properties
- Formulas
A closed, round geometric figure in which the set of all the points in the plane isequidistant from a given point called ‘center’.
1) Radius – Theline that joins the center of the circle to theouter boundary. It is usually represented by ‘r’ or ‘R’. The plural of radius is called radii. 2) Diameter – The line segment whose endpoints lie on thecircle and that passes through the center. Its length is twice the length of aradius. It is represented by as -‘d’ or ‘D’. So, r = d/2 o...
Circumference
Also known as the perimeter, it is the total distance covered around the circle. The formula is given below: Circumference (C) = 2πr, here r = radius, and π= 3.141 = 22/7
Area
It is the total space enclosed inside the boundary of the circle. It is also known as the ‘surface area of the circle’. The formula is given below: Area (A) = πr2, here r = radius, and π= 3.141 = 22/7 1. More Resources 1.1. Area of a Circle 1.2. Circumference of a Circle 1.3. Equation of a Circle 1.4. Diameter of a Circle 1.5. Radius of a Circle 1.6. Concentric Circles 1.7. Semi circle 1.8. Chord of a Circle 1.9. Tangent of a Circle 1.10. Arc of a Circle 1.11. Secant of a Circle 1.12. Sector...
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Mar 16, 2017 · A circle is defined as a shape with equal distance to all points from its center. There are no corners, thus forming a round shape. To distinguish circles from each other they can be named by the point at their center. Circles come in any size and can be further distinguished by determining the area and transversals. Area of A Circle.
Learn about the radius, diameter, and other properties of circular shapes. Find out how to calculate circumference from diameter, explore the area of a circle equation, and define the perimeter of a circle. Unlock the secrets of circles with our comprehensive guide.
Aug 24, 2023 · 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 lot of different parts to a circle, including its diameter, its radius, and more.
4 days ago · 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 circle is called a chord, and a chord passing through the centre is called a diameter.
