document.write( "Question 1194430: Two students ride on an helicopter to measure the
\n" ); document.write( "width of a lake. At a point 760 m above the lake, they are
\n" ); document.write( "able to measure using a lensatic sighting compass the angle of
\n" ); document.write( "depression on one side of the lake as 45° and the angle of
\n" ); document.write( "depression on the other side is 20°. What is the width of the lake? \n" ); document.write( "

Algebra.Com's Answer #826632 by ikleyn(52781) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "Two students ride on an helicopter to measure the
\n" ); document.write( "width of a lake. At a point 760 m above the lake, they are
\n" ); document.write( "able to measure using a lensatic sighting compass the angle of
\n" ); document.write( "depression on one side of the lake as 45° and the angle of
\n" ); document.write( "depression on the other side is 20°. What is the width of the lake?
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document.write( "If the two observation points at the lake shore are on the different (opposite) sides from the helicopter,\r\n" );
document.write( "then the lake width is\r\n" );
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document.write( "     W =  +  =  = 2848 m  (rounded).    \r\n" );
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document.write( "If the two observation points at the lake shore are on the same side from the helicopter,\r\n" );
document.write( "then the lake width is\r\n" );
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document.write( "     W =  -  =  = 1328 m  (rounded).    \r\n" );
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