Using law of cosines for solving the problem

Reference no: EM1315417

Question: A plane takes off from an airport on the bearing S29° west. It continues for twenty minutes then changes to bearing S52° west and flies for two hours twenty minutes on this course then lands at a second airport. If the plane's speed is 420 meter per hour, how far from the first airport is the second airport? Give your answer to the nearest mile.

[A] 1111 mi
[B] 1110 mi
[C] 1010 mi
[D] 1011 mi

Reference no: EM1315417

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