document.write( "Question 128121: The formula for the surface area of a sphere is A=4pier^2.A square sticker of side x is placed on a ball of radius 3x.What's the surface area of the sphere not covered by the sticker?Write your answer in factored form. \n" ); document.write( "
Algebra.Com's Answer #93816 by edjones(8007)\"\" \"About 
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A=4*pi*r^2 (sphere)
\n" ); document.write( "=4*pi*(3x)^2
\n" ); document.write( "=4*pi*9x^2
\n" ); document.write( "=pi*36x^2 or 113.01x^2
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\n" ); document.write( "A=x^2 (sticker)
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\n" ); document.write( "pi*36x^2-x^2 or 112.01x^2 Surface area of the sphere not covered by the sticker.
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