document.write( "Question 335980: The base of a 16ft ladder is 4ft from a wall. How high on the wall does the ladder reach? \n" ); document.write( "
Algebra.Com's Answer #240962 by checkley77(12844)\"\" \"About 
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You have a right triangle.
\n" ); document.write( "a^2+b^2=c^2
\n" ); document.write( "4^2+b^2=256
\n" ); document.write( "16+b^2=256
\n" ); document.write( "b^2=256-16
\n" ); document.write( "b^2=240
\n" ); document.write( "b=sqrt240
\n" ); document.write( "b=15.49 ft. ans. for the height of the ladder up the wall.
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