document.write( "Question 83668: ladder 18ft long leans against vertical wall and makes angle of 72 degrees with level ground. how highup the wall does hte ladder reach to nearest tenth of foot \n" ); document.write( "

Algebra.Com's Answer #60254 by ankor@dixie-net.com(22740) $\"\"$ $\"About$

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ladder 18ft long leans against vertical wall and makes angle of 72 degrees with level ground. how high up the wall does the ladder reach to nearest tenth of foot
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\n" ); document.write( "We can use the sine for this, side opposite (x); is the height of the ladder:
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\n" ); document.write( "Sin(72) = $\"x%2F18%29\"$
\n" ); document.write( ".951 = $\"x%2F18%29\"$
\n" ); document.write( "x = 18 * .951
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\n" ); document.write( "x = 17.1 ft \n" ); document.write( "

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