Find the Area of Triangle ABC with the Given Parts $135 ^ { \circ }$

Find the area of triangle ABC with the given parts. Round to the nearest tenth when necessary.
-Two airplanes leave an airport at the same time, one going northwest (bearing $135 ^ { \circ }$ ) at $410 \mathrm { mph }$ and the other going east at $333 \mathrm { mph }$ . How far apart are the planes after 4 hours (to the nearest mile) ?

A) $2158 \mathrm { mi }$
B) $2288 \mathrm { mi }$
C) $687 \mathrm { mi }$
D) $2748 \mathrm { mi }$