I think Chuckles has it. Course made good is the actual COG A-B. But, I think what the OP is asking for is a term for the angle of attack relative to COG toward a waypoint?? A boat pointing equally 35 degrees to apparent wind on the different tacks may not be pointing equally relative to the intended course to a destination due to the current vector so the actual angles of the COG toward the destination would be different.
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