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Query from: Anonymous, South Africa, 04/27/11
Topic: SCIENCE      Submitted on: AnswerPod.com
Subject: Formula for surface area

Please provide your answer WITHOUT using links or attaching images, docs, etc. (You must still give your source, however).
Attention Council Members: If this query is in the wrong category, be sure to put it in the appropriate category.

Here is the question: Give me the formula of surface area of a sphere?

Rate = 3 (Rated by 2 Council Members)
[ This query closed ]
random/tn_n-brook.jpg
Response from: sambasivan s,   
Featured Member on Ammas.com
Source: http://www.math.com/tables/geometry…
the formula for surface area of a sphere = 4 pi r2 = 4 X 22/7 X radius X radius. (r is the radius of sphere.) http://www.math.com/tables/geometry…

Rate = 1.5 (Rated by 1 Council Member)

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Response from: KG Anand,   
Registered Member on Ammas.com
Source: This information comes from my own knowledge.
Formula for surface area (S) of a sphere is = constant Factor of Pai (22/7=3.142) R * Spheres Periopheri. Where R is the Radius of the sphere.

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Response from: shiva sakthi,   
Council Member on Ammas.com
Source: This information comes from my own knowledge.
Hai,

Surface Area of a Sphere = 4 pi r 2 ( 4 * pi *r * r )

r is radius of circle

pi value is 3.14

Rate = 1.5 (Rated by 1 Council Member)

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Response from: Nagarajan S,   
Featured Member on Ammas.com
Source: This information comes from my own knowledge.
Surface Area of a Sphere = 4 pi r 2 (r is radius of Circle)

Rate = 1.5 (Rated by 1 Council Member)

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Response from: Vidya ,   
Featured Member on Ammas.com
Source: This information comes from my own knowledge.
For a sphere of radius R, the surface area is 4* (pi) * R^2. (the product of 4 pi times the square of the radius of the sphere)

Rate = 3 (Rated by 2 Council Members)

 
Response from: Dr.Anjna Agarwal,   
Featured Member on Ammas.com
Source: http://webcache.googleusercontent.c…
The surface area of a sphere is given by the following formula A=4"r2 This formula was first derived by Archimedes, based upon the fact that the projection to the lateral surface of a circumscribing cylinder (i.e. the Gall-Peters map projection) is area-preserving. It is also the derivative of the formula for the volume with respect to r because the total volume of a sphere of radius r can be thought of as the summation of the surface area of an infinite number of spherical shells of infinitesimal thickness concentrically stacked inside one another from radius 0 to radius r. At infinitesimal thickness the discrepancy between the inner and outer surface area of any given shell is infinitesimal and the elemental volume at radius r is simply the product of the surface area at radius r and the infinitesimal thickness.

http://anu0562.blogspot.com/…

Rate = 2 (Rated by 1 Council Member)

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Response from: n manohar rao,   
Featured Member on Ammas.com
Source: This information comes from my own knowledge.
IIr2

Rate = 4.5 (Rated by 1 Council Member)

 
 
 
 
 
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