document.write( "Question 1150825: From an airplane at an altitude of 1200 m, the angle of depression to a building on the ground measures 28 degrees. What is the distance from the plane to the building? \n" ); document.write( "

Algebra.Com's Answer #772324 by 4419875(21) $\"\"$ $\"About$

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In this problem, by analysis, we can form a right triangle and by this reason, the
\n" ); document.write( "altitude shall be the height and the distance of the building, at a given angle, to the airplane is the hypotenuse. With the given parameters, we can apply the trig function of sine, wherein $\"sin%28x%29=opposite%2Fhypotenuse\"$
\n" ); document.write( "Now by plugging in the values\r
\n" ); document.write( "\n" ); document.write( " $\"sin%2828%29=1200m%2Fh\"$
\n" ); document.write( " $\"h=1200m%2Fsin%2828%29\"$ \r
\n" ); document.write( "\n" ); document.write( "where $\"h=2556.065m\"$
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