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1. Dictionary

   sphere

   /sfɪə/

   noun

   • 1. a round solid figure, or its surface, with every point on its surface equidistant from its centre.
   • ▪ a spherical object; 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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2. 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 .

   0,1' $&7,21 6(5,(6 0$7+(0$7,&6 - tongaatsecondary.co.za

   www.tongaatsecondary.co.za/gallery/Mind Action Maths Gr 9.pdf

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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

   www.omnicalculator.com/math/sphere-equation

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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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3. 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 is round in shape and has no edges or vertices. Learn the equation, formulas, properties and examples of a sphere with Byju's Maths.

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

   en.wikipedia.org › wiki › Sphere

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   A sphere (from Greek σφαῖρα, sphaîra) 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. That given point is the center of the sphere, and r is the sphere's radius.

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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 round-shaped object with no edges or vertices. Learn how to calculate its radius, diameter, circumference, surface area, and volume using formulas and examples.

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7. www.splashlearn.com › math-vocabulary › geometrySphere - Definition, Formulas, Equation, Properties, Examples

   www.splashlearn.com › math-vocabulary › geometry

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   A sphere is a round, solid shape with no edges or vertices. Learn how to calculate its radius, diameter, circumference, surface area, and volume using formulas and examples.

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8. Videos

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     youtube.com

     Understanding the Volume of a Sphere Formula [Using High School Geometry]

     9 Jun 2011

     1.3M views

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     9:41

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     Understanding the Surface Area of a Sphere Formula

     27 May 2013

     846.4K views

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     youtube.com

     Visualizing the Volume of a Sphere Formula | Deriving the Algebraic Formula With Animations

     28 Sep 2014

     851.9K views

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9. mathworld.wolfram.com › SphereSphere -- from Wolfram MathWorld

   mathworld.wolfram.com › Sphere

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   4 days ago · A sphere is defined as the set of all points in three-dimensional Euclidean space R^3 that are located at a distance r (the "radius") from a given point (the "center"). Twice the radius is called the diameter, and pairs of points on the sphere on opposite sides of a diameter are called antipodes.

10. mathmonks.com › sphereSphere – Shape, Formulas, Examples & Diagrams - Math Monks

    mathmonks.com › sphere

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    Aug 3, 2023 · Definition. A sphere is a three-dimensional symmetrical solid. Its shape is spherical which means completely round. It can be defined as the set of all the points equidistant from a fixed point, known as the center. The diagram below shows the shape of a sphere. Sphere.

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

    www.mathsisfun.com › geometry › sphere

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    A sphere is a perfectly symmetrical shape with no edges or vertices, and all points on the surface are the same distance from the center. Learn how to calculate the volume and surface area of a sphere, and see examples of spheres in nature and math.