document.write( "Question 1030295: A surveyor is standing 100 meters from a bridge. She find the angle of elevation to the top of the bridge is 35 degrees. Her eye level is 1.45 meters. Find the bridge's height. \n" ); document.write( "

Algebra.Com's Answer #645264 by Fombitz(32388) $\"\"$ $\"About$

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So make a right triangle with an opposite side of $\"Y\"$ and adjacent side of $\"100\"$ .
\n" ); document.write( " $\"tan%2835%29=Y%2F100\"$
\n" ); document.write( " $\"Y=100tan%2835%29\"$
\n" ); document.write( " $\"Y=70.0\"$ $\"m\"$
\n" ); document.write( "So then add the height of her eye level to get the bridge height.
\n" ); document.write( " $\"H=Y%2B1.45\"$
\n" ); document.write( " $\"H=71.45\"$ $\"m\"$ \n" ); document.write( "

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