ocr: The Miller projection on the previous page shows the shape of the countries correctly. The 180° 90° 0° 90° 180° Eckert IV projection, however, shows 60° 60° countries with their areas in correct 30° 30° proportion. 0° 0° Although every projection represents the earth differently, each method 30° 30° measures the lines of longitude and 60° 60° latitude in the same way. This consistency 180° 90° 0° 90° 180° is essential to allow universal grid referencing. ECKERT IV PROJECTION