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1. Dictionary

   Sphere

   /sfir/

   

   noun

   • 1. a round solid figure, or its surface, with every point on its surface equidistant from its center.
   • ▪ an object having a round solid shape; a ball or globe: "the markers on the route included two conspicuous black spheres" Similar globeballorbspheroidglobuleroundbubblerare:spherule
   • ▪ a globe representing the earth: "the room was littered with books, maps, and spheres"
   • ▪ a celestial body: literary "he sometimes took out his telescope to make sure the spheres were still revolving in good order"
   • ▪ the sky perceived as a vault upon or in which celestial bodies are represented as lying. literary
   • ▪ each of a series of revolving concentrically arranged spherical shells in which celestial bodies were formerly thought to be set in a fixed relationship.
   • 2. an area of activity, interest, or expertise; a section of society or an aspect of life distinguished and unified by a particular characteristic: "political reforms to match those in the economic sphere" Similar domainrealmprovincefieldarearegionterritoryarenadepartmentarea of interestarea of studydisciplinespecialityspecialty

   verb

   • 1. enclose in or as if in a sphere: archaic "mourners, sphered by their dark garb"
   • ▪ form into a rounded or perfect whole: archaic "you, hitherto, have still had goodness sphered within your eyes"

   Word Origin Middle English: from Old French espere, from late Latin sphera, earlier sphaera, from Greek sphaira ‘ball’.

   Scrabble Points: 11

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3. www.merriam-webster.com › dictionary › sphereSphere Definition & Meaning - Merriam-Webster

   www.merriam-webster.com › dictionary › sphere

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   a (1) : the apparent surface of the heavens of which half forms the dome of the visible sky. (2) : any of the concentric and eccentric revolving spherical transparent shells in which according to ancient astronomy stars, sun, planets, and moon are set. b. : a globe depicting such a sphere. broadly : globe sense a.

4. Images

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5. en.wikipedia.org › wiki › SphereSphere - Wikipedia

   en.wikipedia.org › wiki › Sphere

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   A sphere (from Greek σφαῖρα, sphaîra) [1] is a geometrical object that is a three-dimensional analogue to a two-dimensional circle. Formally, a sphere is the set of points that are all at the same distance r from a given point in three-dimensional space. [2]

   • Euler char.: 2
   • Symmetry group: O(3)

   • Surface area: 4πr²

6. www.cuemath.com › geometry › sphereSphere - Shape, Definition, Formulas, Properties, Examples

   www.cuemath.com › geometry › sphere

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   A sphere is a three-dimensional shape or object that is round in shape. The distance from the center of the sphere to any point on its surface is its radius. Learn more about the definition, formulas, and properties of the sphere in this article.

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8. byjus.com › maths › sphereSphere - Definition, Formulas, Equation, Properties & Examples

   byjus.com › maths › sphere

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   A sphere is a three-dimensional object that has no edges and no vertices. Visit BYJU'S to learn the sphere definition, surface area and volume formula, equation, properties and solved examples.

   • What is a sphere?

     A sphere is three dimensional, geometrical shape, that has all its surface points equidistant from a common point. The distance between the surface...
   • How many sides does a sphere have?

     A sphere does not have any sides, since it is a round-shaped object. It has a curved surface and not a flat surface.
   • Is a sphere, circle?

     A circle is a two dimensional shape, that has area and perimeter only. A sphere is a three dimensional shape, that has surface area and volume.
   • What is Hemisphere?

     A hemisphere is exactly half of a sphere. It has a curved surface and a flat surface.
   • What are the characteristics of a sphere?

     A sphere is symmetrical, round in shape. It is a three dimensional solid, that has all its surface points at equal distances from the center. It ha...
   • What are the examples of spheres?

     Football, Basketball, Globe, Planets, etc. are examples of sphere.
   • What is surface area and volume of sphere?

     The surface area of a sphere is the total area covered by surface of a sphere in three-dimension space. The formula for surface area is: SA = 4πr...

9. www.britannica.com › science › sphereSphere | Geometry, Symmetry, Circumference | Britannica

   www.britannica.com › science › sphere

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   Apr 23, 2024 · sphere, In geometry, the set of all points in three-dimensional space lying the same distance (the radius) from a given point (the centre), or the result of rotating a circle about one of its diameters. The components and properties of a sphere are analogous to those of a circle.

   • Author: The Editors of Encyclopaedia Britannica

10. People also ask

    How do you calculate the surface area of a sphere?

    • (f) The surface area of a sphere is given by the formula S4r2. (1) If r7 and 3,14 , calculate S rounded off to two decimal places. (2) If S 100, calculate the value of r. (g) The surface area of a cylinder is given by the formula S 2 ( ) rr h. (1) Calculate S if r6 and h10 .

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    How do you find the radius and center of a sphere?

    • Similarly, you can use the standard form of the sphere equation to find the radius and center of the sphere. For example, a sphere with the equation (x-7)^2 + (y-12)^2 + (z-4)^2 = 36 (x−7)2 +(y− 12)2 +(z −4)2 = 36 would have its center at (7,12,4) (7,12,4), and its radius is given by:

    Equation of a Sphere Calculator

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    What is the distance between a sphere and the center?

    • The points on the surface of the sphere are equidistant from the center. Hence, the distance between the center and the surface of the sphere are equal at any point. This distance is called the radius of the sphere. Examples of spheres are a ball, a globe, the planets, etc. What is a Sphere?

    Sphere - Definition, Formulas, Equation, Properties & Examples

    byjus.com/maths/sphere/

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11. www.dictionary.com › browse › sphereSPHERE Definition & Meaning | Dictionary.com

    www.dictionary.com › browse › sphere

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    Sphere definition: a solid geometric figure generated by the revolution of a semicircle about its diameter; a round body whose surface is at all points equidistant from the center. Equation. See examples of SPHERE used in a sentence.

12. www.mathsisfun.com › geometry › sphereSphere - Math is Fun

    www.mathsisfun.com › geometry › sphere

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    Of all the shapes, a sphere has the smallest surface area for a volume. Or put another way it can contain the greatest volume for a fixed surface area. Example: if you blow up a balloon it naturally forms a sphere because it is trying to hold as much air as possible with as small a surface as possible. Press the Play button to see.