| Term | Definition |
| 3 type of projection maps | 1. cylindrical 2. planar projection 3. conic |
| cylindrical | entire world on one continuous map |
| problem with cylindrical | higher latitudes very distorted (stretched) |
| mercator | found in most classrooms; cylindrical |
| planar projections | 1. gnomonic 2. azimuthal 3. conic |
| gnomonic | made as if a sheet of paper was put on a point on earth's surface and stretched into a square map |
| problem with gnomonic | distance and direction distorted |
| which map shows direction btwn 2 points | gnomonic |
| azimuthal | made as if a piece of paper was put on a point on earth's surface and stretched into a round map |
| is azimuthal or gnomonic less distorted | azimuthal |
| conic | used to show small areas; almost distortion free |
| used to make topographic maps | conic |