trig
posted by nina .
Two Airplanes leave an airport at the same time on different runways. One flies on a bearing of N66degreesW at 325 miles per hour. The other airplane flies on a bearing öf S26degreesW at 300 miles per hour. How far apart will the airplanes be after 2 hours?

trig 
Reiny
After you make your sketch, it should be simple to calculate the angle between their flightpaths to be 88° , and after 2 hours the distance covered would be
650 and 600 miles. So a direct application of the cosine law ....
d^2 = 650^2 + 600^2  2(650)(600)cos88°
= ...
d = √.....
I get appr 869 miles
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