document.write( "Question 219029: A 12 foot ladder is three and a half feet from a wall. How high on the wall does the ladder touch? \n" ); document.write( "
Algebra.Com's Answer #164978 by rfer(16322)\"\" \"About 
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a^2=c^2-b^2
\n" ); document.write( "a^2=12^2-3.5^2
\n" ); document.write( "a^2=144-12.25
\n" ); document.write( "a^2=131.75
\n" ); document.write( "a=11.48 ft
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