Help please
Hi everybody,
here is a question i struggle to answer even if i'm sure it's really easy to answer.
here it is :
The Average magnetic course from A (64°N 006°E) to C (62°N 020°W) is :
a) 271
b) 259
c) 247
d) 279
answer a is correct
Could someone remind me (if i ever forgot) how do we calculate this? I'd be tempted to look on a chart to get the answer but i'm sure there's a way to calculate it and that the question expects us to do so (rather than simply plotting a track on a chart).
Sorry if my english is not perfect
many thanks
TG