document.write( "Question 311920: What is the surface area of a sphere with a 4 ft diameter (round to 1 decimal)? \n" ); document.write( "
Algebra.Com's Answer #223032 by mananth(16946)\"\" \"About 
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surface area of sphere = 4*pi*r^2\r
\n" ); document.write( "\n" ); document.write( "Diameter = 12 feet
\n" ); document.write( "radius = 2 feet
\n" ); document.write( "S= 4*pi*2^2
\n" ); document.write( "= 50.3 sq. feet
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