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Spherical geometry - Wikipedia

en.wikipedia.org/wiki/Spherical_geometry

Spherical geometry is the geometry of the two-dimensional surface of a sphere. It is an example of a geometry that is not Euclidean. Two practical applications of ...

Sphere - Math is Fun

www.mathsisfun.com/geometry/sphere.html

Sphere. Go to Surface Area or Volume. Sphere Facts. Notice these interesting things: Sphere Radius. It is perfectly symmetrical; All points on the surface are the

The Geometry of the Sphere - Rice University

math.rice.edu/~pcmi/sphere/

Jan 28, 2000 ... This material was the text for part of the Advanced Mathematics course in the High School Teachers Program at the IAS/Park City Mathematics ...

Sphere -- from Wolfram MathWorld

mathworld.wolfram.com/Sphere.html

Twice the radius is called the diameter, and pairs of points on the sphere on opposite .... Coolidge, J. L. A Treatise on the Geometry of the Circle and Sphere.

Spherical Geometry -- Math Fun Facts

www.math.hmc.edu/funfacts/ffiles/20001.2.shtml

Remember high school geometry? The sum of the angles of a planar triangle is always 180 degrees or Pi radians. However, triangles on other surfaces can ...

Circle, Cylinder, Sphere - Paul Bourke

paulbourke.net/geometry/circlesphere/

A great circle is the intersection a plane and a sphere where the plane also ..... There are a number of 3D geometric construction techniques that require a ...

The Sphere | Solid Geometry Review - MATHalino.com

www.mathalino.com/reviewer/solid-mensuration-solid-geometry/sphere

Every section in the sphere made by a cutting plane is a circle. If the cutting plane passes through the center of the sphere, the section made is a great circle; ...

Sphere: Definition & Formulas - Video & Lesson Transcript | Study.com

study.com/academy/lesson/sphere-definition-formulas-quiz.html

This lesson will give a mathematical definition of a sphere, discuss the formulas... ... 27 - Analytic Geometry & Conic Sections in Trigonometry:... Go to Analytic ...

Volume of a sphere | Solid geometry intro | Solid geometry | High ...

www.khanacademy.org/math/geometry/hs-geo-solids/hs-geo-solids-intro/v/volume-of-a-sphere

The formula for the volume of a sphere is V = 4/3 πr³. See the formula used in an example where we are given the diameter of the sphere.

Sphere Page - Regents Exam Prep Center

www.regentsprep.org/regents/math/geometry/gg2/SpherePage.htm

Note: A cross section of a geometric solid is the intersection of a plane and the solid. The surface area of a sphere is four times the area of the largest ...

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Spherical Geometry - EscherMath

mathstat.slu.edu

Nov 27, 2016 ... Spherical geometry is nearly as old as Euclidean geometry. In fact, the word geometry means “measurement of the Earth”, and the Earth is ...

Spherical Geometry -- from Wolfram MathWorld

mathworld.wolfram.com

The study of figures on the surface of a sphere (such as the spherical triangle and spherical polygon), as opposed to the type of geometry studied in plane ...

Spherical Geometry

jwilson.coe.uga.edu

Spherical Geometry. Danielle Frailey. Spherical Geometry in History. At the time when Earth was discovered to be round rather than flat, spherical geometry ...