Question 1113306
North direction leg 760 km

Westward direction leg, x


The two legs meet at 90 degree angle.

Angle at the north:  50 degrees
Angle at the west:  40 degrees.


{{{x/760=tan(50)}}}


{{{x=760*tan(50)}}}


{{{x=906}}}


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I used the 220 degree bearing according to 0 degrees being directly Eastward, so as to be the same direction as used on the Unit Circle.  East, like the positive direction on the x-axis.  This way 180 degrees is all the way West, and 220 degrees is  220-180=40 degrees downward from West.