From the figure you can see that the angle between C and B (green angle) is equal to
(360° -341° ) + 41° = 60°
We get the triangle, let call side AB - c, AC-b, BC-a
1)
So,using the law of cosines:
a2=b2+c2−2bc×cosAa2=82+112−2(8)(11)×cos60°a2=97,a=9.8km
BC=9.8 km
2)
From the law of Sines find the angle C at point C
sin60°9.8=sinC11sinC=9.8sin60°×11=0.972C=sin−1(0.972)=75.3°
The bearing of B from C is the angle formed by the line joining C and B and rotating about C. By Geometry this angle is
180° - (C + 19°) = 180°-(75.3°+19°)=85.7 °
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