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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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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

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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. 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

4. www.ilearnlot.com › understanding-the-definitionUnderstanding the Definition of a Sphere - ilearnlot

   www.ilearnlot.com › understanding-the-definition

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   Apr 26, 2024 · A sphere is a three-dimensional geometric shape that is perfectly round and symmetrical. It is a solid figure formed by all the points in space that are equidistant from a common center point. The surface of a sphere is smooth and curved, and it has no edges or vertices.

5. Videos

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6. www.geeksforgeeks.org › equation-of-a-sphereEquation of a Sphere - GeeksforGeeks

   www.geeksforgeeks.org › equation-of-a-sphere

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   1 day ago · Area = 4πr 2. This formula calculates the total area of the sphere’s surface, which is covered by points equidistant from its center. The surface area of a sphere is a fundamental quantity used in various mathematical and physical contexts, such as in geometry, physics, and engineering.

7. mathmonks.com › sphere › surface-area-of-a-sphereSurface Area of a Sphere - Formulas with Derivation, & Examples

   mathmonks.com › sphere › surface-area-of-a-sphere

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   Apr 25, 2024 · The surface area of a sphere is the entire region covered by its outer round surface. It is also the curved surface area of a sphere. Like all other surface area it is expressed in square units such as m 2, cm 2, and mm 2. We will learn how to find the surface area of a solid sphere. The equations are given below.

8. www.britannica.com › science › atmosphereAtmosphere | Definition, Layers, & Facts | Britannica

   www.britannica.com › science › atmosphere

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   6 days ago · atmosphere, the gas and aerosol envelope that extends from the ocean, land, and ice -covered surface of a planet outward into space. The density of the atmosphere decreases outward, because the gravitational attraction of the planet, which pulls the gases and aerosols (microscopic suspended particles of dust, soot, smoke, or chemicals) inward ...

   • Author: Roger A. Pielke

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9. en.wikipedia.org › wiki › PiPi - Wikipedia

   en.wikipedia.org › wiki › Pi

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   4 days ago · The number π ( / paɪ /; spelled out as " pi ") is a mathematical constant that is the ratio of a circle 's circumference to its diameter, approximately equal to 3.14159. The number π appears in many formulae across mathematics and physics.

10. www.askdifference.com › round-vs-sphereRound vs. Sphere — What’s the Difference?

    www.askdifference.com › round-vs-sphere

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    May 4, 2024 · Round is a general term that can describe anything with a curved shape that lacks sharp angles, be it flat circles or solid objects. On the other hand, sphere is used specifically to denote a three-dimensional shape where every point on the surface is an equal distance from the center, such as a basketball. 14.