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## Spherical geometry

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 1.

math.rice.edu/~pcmi/sphere/sphere.html

Basic information about spheres. We will start with the basics. A sphere is a set of points in three dimensional space equidistant from a point called the center of ...

## Spherical Geometry - EscherMath

euler.slu.edu/escher/index.php/Spherical_Geometry

Nov 22, 2015 ... Spherical geometry is nearly as old as Euclidean geometry. In fact, the word geometry means “measurement of the Earth”, and the Earth is ...

## Spherical Triangle -- from Wolfram MathWorld

mathworld.wolfram.com/SphericalTriangle.html

"Spherical Geometry and Trigonometry." §6.4 in CRC Standard Mathematical Tables and Formulae. Boca Raton, FL: CRC Press, pp. 468-471, 1995.

## 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 ...

## Sphere Facts - Interesting Information about Spheres

www.kidsmathgamesonline.com/facts/geometry/spheres.html

Fun Geometry Facts for Kids - Interesting Shapes, Trivia & Information ... A sphere is a perfectly round three dimensional shape similar to a round ball you might ...

## 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

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

## Sphere Page - RegentsPrep

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 ...

### The Geometry of the Sphere

math.rice.edu

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 ...

### 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 ...

### Spherical Geometry -- from Wolfram MathWorld

mathworld.wolfram.com

The angle between two lines in spherical geometry is the angle between the planes of the corresponding great circles, and a spherical triangle is defined by its ...