👉 Eastings are a type of coordinate system used in navigation, especially for aircraft and ships. They consist of two perpendicular lines that intersect at 90 degrees to form an equilateral triangle. The line from the north pole to the south pole is called the meridian (or "equator") and is often referred to as the true easting. The other two lines are called the westings, which are perpendicular to the true easting and extend outward from the true easting at 9