document.write( "Question 422150: If the diameter of the sphere is 4 inches, what is the surface area? \n" ); document.write( "
Algebra.Com's Answer #294673 by MathLover1(20850)\"\" \"About 
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\n" ); document.write( "given: the diameter \"d\" of the sphere is \"4\" inches...=>...the radius \"r=d%2F2=2in\"\r
\n" ); document.write( "\n" ); document.write( "the surface area of a sphere with radius \"r\" equals \"A=4%28pi%29r%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"A=4%283.14%29%282in%29%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"A=4%2A3.14%2A4in%5E2\"\r
\n" ); document.write( "\n" ); document.write( "\"A=50.24in%5E2\"
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