document.write( "Question 1131837: helicopter flies from the airport on a course with a bearing of 19degrees. After flying for 105 miles, the helicopter flies due east for some time. The helicopter flies back to the airport with a bearing of 223degrees. How far did the helicopter fly on the final leg of its journey? \n" ); document.write( "
Algebra.Com's Answer #748536 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! helicopter flies from the airport on a course with a bearing of 19degrees. \n" ); document.write( " After flying for 105 miles, the helicopter flies due east for some time. \n" ); document.write( " The helicopter flies back to the airport with a bearing of 223degrees. \n" ); document.write( " How far did the helicopter fly on the final leg of its journey? \n" ); document.write( ": \n" ); document.write( "Draw this out and find the interior angles of the triangle formed by the course of the helicopter, starts at C, 105 mi to A \n" ); document.write( "A: 19 + 90 = 109 degrees \n" ); document.write( "B: 270-223 = 47 degrees \n" ); document.write( "C: 108 - 109 - 47 = 24 degrees \n" ); document.write( ": \n" ); document.write( "a = final leg distance \n" ); document.write( "b = 105 mi \n" ); document.write( ": \n" ); document.write( "Use the law of sines to find a \n" ); document.write( " \n" ); document.write( ": \n" ); document.write( "a = \n" ); document.write( "a = 135.7 mi \n" ); document.write( " \n" ); document.write( " |