document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1202761>Question 1202761</A>: <I><SPAN STYLE=\"word-break: break-all;\"> An airplane is observed to be approaching a point at a distance of 12km from the point of observation and makes an angle of elevation of 50°. Find the height of the airplane above the ground.<BR>\n" );
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document.write( "sin(angle) = opposite/hypotenuse<BR>\n" );
document.write( "sin(50) = h/12<BR>\n" );
document.write( "h = 12*sin(50)<BR>\n" );
document.write( "h = 9.19253331742773<BR>\n" );
document.write( "h = 9.2\r<BR>\n" );
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document.write( "The height of the airplane is <font color=red>approximately 9.2 km</font>.<BR>\n" );
document.write( "Round that however needed.\r<BR>\n" );
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document.write( "Extra info:<BR>\n" );
document.write( "9.2 km = 5.7166 miles = 30183.727 feet approximately <BR>\n" );
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