document.write( "Question 1066059: radius of a sphere measures 1/4mn^2.What is the surface area of the square if m=4 and n=-2.use formula SA= 4pir^2
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Algebra.Com's Answer #681230 by addingup(3677)\"\" \"About 
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1/4mn^2
\n" ); document.write( "1/4(4 × -2)^2
\n" ); document.write( "The square of ANY number is positive (-2^2 = -2 × -2 and - × - = +)
\n" ); document.write( "So we have:
\n" ); document.write( "1/4(16 × 4) = radius
\n" ); document.write( "4 × 1 = 4 this is the radius
\n" ); document.write( "Surface area of the sphere:
\n" ); document.write( "4πr^2 = Surface Area
\n" ); document.write( "4π(4)^2 = 201.06
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