document.write( "Question 258269: A ramp is used to make wheelchair access easy. The maximum incline recommended is the ratio 1:12. That is, for each meter in height, the ramp
\n" ); document.write( "extends 12 meters in length. Estimate the measure of the angle that this ramp
\n" ); document.write( "makes with the level ground.
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Algebra.Com's Answer #190121 by nerdybill(7384)\"\" \"About 
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Applying trigonometry, we know that
\n" ); document.write( "Let x = angle
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\n" ); document.write( "tan(x) = opposite/adjacent
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\n" ); document.write( "tan(x) = 1/12
\n" ); document.write( "x = tan^-1(1/12)
\n" ); document.write( "x = arctan(1/12)
\n" ); document.write( "x = 4.76 degrees
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