document.write( "Question 355136: A sphere has a radius of 20 cm. How many spheres of 10-cm will have the same surface area as the surface area of the sphere? Explain. \n" ); document.write( "

Algebra.Com's Answer #253671 by ewatrrr(24785) $\"\"$ $\"About$

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Hi,
\n" ); document.write( "*Note: Surface Area of a Sphere = $\"4%2Api%2Ar%5E2\"$
\n" ); document.write( ".
\n" ); document.write( "Sphere with r = 20
\n" ); document.write( "Surface Area = $\"4%2Api%2A400cm%5E2\"$
\n" ); document.write( ".
\n" ); document.write( "Sphere with r = 10
\n" ); document.write( "Surface Area = $\"4%2Api%2A100cm%5E2\"$
\n" ); document.write( ".
\n" ); document.write( "would take 4 spheres with r = 10cm to have Surface Area = $\"4%2Api%2A400cm%5E2\"$ \n" ); document.write( "

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