document.write( "Question 1205348: A ship is 130 m away from the centre of a barrier that measures 180 m from end to end. What is the minimum angle that the boat must be turned to avoid hitting the barrier? \n" ); document.write( "

Algebra.Com's Answer #842079 by ikleyn(53764) $\"\"$ $\"About$

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\n" ); document.write( "A ship is 130 m away from the centre of a barrier that measures 180 m from end to end.
\n" ); document.write( "What is the minimum angle that the boat must be turned to avoid hitting the barrier?
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document.write( "The barrier is a circular shape.\r\n" );
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document.write( "The minimum angle is defined by the tangent line to the barrier.\r\n" );
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document.write( "The angle is  sin(a) =  =  = 0.69231\r\n" );
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document.write( "a = arcsin(0.69231) = 0.7647 radians, or 43.9 degrees (approximately).    ANSWER\r\n" );
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