document.write( "Question 882512: when using a ladder the ladder should be from a 15 angle with the billding how far should a 20 ft ladder be place against the bulding to ensure a 15 angle \n" ); document.write( "
Algebra.Com's Answer #532883 by ewatrrr(24785)\"\" \"About 
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cos 15 = adj/hyp = x/20
\n" ); document.write( "20cos(15) = x , distance from bottom of ladder to the building
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