document.write( "Question 1195301: A large storage building is in the shape of a hemisphere. If it took 40 liters of paint to cover the floor, how many liters can one expect to need to paint the exterior of the building \n" ); document.write( "

Algebra.Com's Answer #827753 by josgarithmetic(39799) $\"\"$ $\"About$

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$\"pi%2Ar%5E2\"$ area corresponds to 40 liters of paint.\r
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\n" ); document.write( "\n" ); document.write( " $\"4pi%2Ar%5E2\"$ would be whole sphere area, but the building is hemisphere
\n" ); document.write( "so $\"2pi%2Ar%5E2\"$ would be the area needing to be painted.\r
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\n" ); document.write( "\n" ); document.write( " $\"%282pi%2Ar%5E2%29%2F%28pi%2Ar%5E2%29=2\"$
\n" ); document.write( "Ratio of the exterior paint to the floor paint is 2;
\n" ); document.write( "therefore 80 liters of paint needed for the exterior. \n" ); document.write( "

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