A vessel heading NW is on a course of __________.
• Cardinal and intercardinal points on the compass rose (N, NE, E, SE, S, SW, W, NW) and their degree values • Relationship between quadrants of the compass (0°–90°, 90°–180°, 180°–270°, 270°–360°) and general directions (NE, SE, SW, NW) • How to convert a named direction like NW into its approximate degree value between west (270°) and north (360°)
• First, list the degree values for N, E, S, and W. Then think about where NW lies between W and N on that scale. • Ask yourself: NW is halfway between which two cardinal points, and what are the degree values of those two points? • Check which of the answer choices lies in the correct quadrant for a NW heading (between W and N), then decide which one is exactly at NW, not just roughly in that area.
• Confirm that north (N) is at 000°/360° and west (W) is at 270° on the compass rose. • Make sure the course you choose is in the 270°–360° range, because NW is between west and north. • Verify which choice is exactly halfway between 270° (W) and 360° (N), since NW is midway between those two cardinal directions.
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