document.write( "Question 1052578: the surface area of a sphere varies directly with the square of its radius. when the radius of a sphere mesures 2 meters, the surface area mesures 16 square meters. find the surface area of fa sphere with a radius of 3 meters \n" ); document.write( "
Algebra.Com's Answer #667922 by addingup(3677)\"\" \"About 
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4Pir^2
\n" ); document.write( "4*3.1416*9 = 113.1
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