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# HELP C2 Watch

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2. To get you started

From A, the clockwise angle from North of L is 340 degrees and the clockwise angle from North of B is 280 degrees. Hence the angle LAB is 340-280=60.

The reverse bearing of A from B is 280+180=460 hence we take 360 off to get 100 degree and so this is the clockwise angle from North of A from B. Meanwhile we know the clockwise angle from North of L from B is 30. Hence LBA is 100-30=70 degrees.
3. BTW, this was in History study help and probably Maths would be better

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