document.write( "Question 1013987: Law of sines or cosines: Two cars leave the city at the same time and travel along straight roads that leave the city at an angle of 80 degree angle. One car is traveling at a rate of 60mph and the other at a rate of 70 mphmph. How far apart will the cars be after 1 hour and 30m30minutes? \n" ); document.write( "

Algebra.Com's Answer #630281 by ikleyn(52873) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "Law of sines or cosines: Two cars leave the city at the same time and travel along straight roads that leave the city at
\n" ); document.write( "an angle of 80 degree angle. One car is traveling at a rate of 60 mph and the other at a rate of 70 mph.
\n" ); document.write( "How far apart will the cars be after 1 hour and 30 minutes?
\n" ); document.write( "-----------------------------------------------------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "Law of cosines.    See the lesson Proof of the Law of Cosines revisited in this site.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "One side of the triangle is 60 mph * 1.5 hours =  90 miles.\r\n" );
document.write( "The other side is           70 mph * 1.5 hours = 105 miles.\r\n" );
document.write( "The angle between these sides is 80°.\r\n" );
document.write( "\r\n" );
document.write( "Hence, the third side is \r\n" );
document.write( "\r\n" );
document.write( " = 125.87 miles.\r\n" );
document.write( "\r\n" );
document.write( "It is the distance between the cars after 1 hour and 30 minutes.\r\n" );
document.write( "

\n" ); document.write( " \n" ); document.write( "

\n" );