document.write( "Question 828727: The radius of a basketball is 4.1 times that of a baseball. How many times larger is the surface area of the basketball. Please explain. \n" ); document.write( "

Algebra.Com's Answer #503478 by LinnW(1048) $\"\"$ $\"About$

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surface area of sphere = $\"4%28pi%29r%5E2\"$
\n" ); document.write( "Assume the baseball has a radius of 1 unit.
\n" ); document.write( "The basketball has a radius of 4.1 units.
\n" ); document.write( "So the ratio of surface areas is
\n" ); document.write( " $\"%284%28pi%29%284.1%29%5E2%29%2F%284%28pi%29%281%29%5E2%29\"$
\n" ); document.write( " $\"%284%28pi%29%29\"$ cancels out
\n" ); document.write( " $\"%28%284.1%29%5E2%29%2F%281%29%5E2%29\"$
\n" ); document.write( " $\"16.81%2F1\"$
\n" ); document.write( "So the surface area of the basketball is 16.81 times larger. \n" ); document.write( "

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