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Spherical geometry


On a sphere, the sum of the angles of a triangle is not equal to 180°. A sphere is not a Euclidean space, but locally the laws of the Euclidean geometry are good ...

The Geometry of the Sphere 1.


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 ...

The Geometry of the Sphere - Rice University


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 -- from Wolfram MathWorld


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 ...

Sphere - Math is Fun


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

Sphere -- from Wolfram MathWorld


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


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: Definition & Formulas | Study.com


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

Area of a Sphere - Volume of a Sphere - Quatr.us


To figure out what the surface area of a sphere is, you multiply the radius by itself and then multiply that by pi ... Bibliography and further reading about geometry: ...

Spherical Geometry - EscherMath


Spherical geometry is nearly as old as Euclidean geometry. In fact, the word geometry means “measurement of the Earth”, and the Earth is (more or less) a ...

Popular Q&A
Q: Diameter of a sphere geometry problem?
A: Circumference = surface area = 4 (pi) r^2 = 9pi 4 r^2 = 9 r^2 = (3/2)^2 ----> r = 3/2 = 1.5 in diameter = 3 in Read More »
Source: answers.yahoo.com
Q: Multiple sphere geometry?
A: I'm sorry, but your question does not make any sense as it is written. First, what is a "geodesic portal"? Second, a vector cannot be a geodesic (and therefore ... Read More »
Source: answers.yahoo.com
Q: Why aren't cylinders cones and spheres polyhedrons geometry?
A: polyhedrons need flat face and edges, corners which cylinder cones don't have. Read More »
Source: wiki.answers.com
Q: How do you do surface area of a sphere in geometry
A: This is how you would find the surface area of a sphere: 4PiR squar... ...MORE... Read More »
Source: www.chacha.com
Q: Then, the volume of the sphere is? Geometry. /. Geometry.
A: Hello, pnd! Doubt 1 . . . absolutely right . *blush*.    The RADIUS is 12 . so the base is 24.  (slap head). Doubt 2 . . . Yes, AB is tangent to the circle.    ... Read More »
Source: en.allexperts.com