Sample Clues
This ancient Alexandrian's "Geography" was used by Renaissance mapmakers
Ptolemy
This table that accompanies a map explains what the symbols & colors represent
a legend
On topographic maps, contour lines are used to show this
elevation
Latitude & longitude are examples of the number pairs that in the Cartesian system are called these
coordinates
While the term "map" refers particularly to land area, this term refers to marine maps
charts