document.write( "Question 956126: Two airplanes leave the same airport at the same time. The first plane flies 170 km/h in a direction of 300 degrees. The second plane flies 210 km/h in a direction of 220 degrees. After two hours, how far apart are the planes? \n" ); document.write( "
Algebra.Com's Answer #584127 by Alan3354(69443)\"\" \"About 
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Two airplanes leave the same airport at the same time. The first plane flies 170 km/h in a direction of 300 degrees. The second plane flies 210 km/h in a direction of 220 degrees. After two hours, how far apart are the planes?
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\n" ); document.write( "Find the 2 distances.
\n" ); document.write( "Then you have 2 sides and the included angle.
\n" ); document.write( "Use the Cosine Law to find the 3rd side.
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