It is common for a map "key" or legend to gauge the size of cities on a map. For example, a city with a population of over 200,000 may be marked by a black dot surrounded by a black bordered circle line. White is the shade between the black dot and the black line of the circle.
By counting the cities on a political map, I believe there are roughly 75 cities of varying size all over the country of Panama.
Circles on a map typically represent points of interest or locations, such as cities, landmarks, or specific geographic features. The size of the circle may indicate the significance or size of the location it represents.
You can determine the relative size of cities on a map by comparing the physical area they cover, indicated by their boundaries or the amount of space they occupy. Additionally, symbols or labels for each city can provide information about population size, with larger cities often having more prominent or larger labels. Other features, such as the number of roads, parks, or infrastructure, can also suggest a city's size and development level.
The scale doesn't tell you anything about the size of a map. If it's a 1:50000 scale, then the only thing you know about the map is that a pair of points that are 1 inch apart on the map are 50,000 inches apart in the real world.
A political map
A Political map
Black dots on a map typically represent point locations of interest, such as cities, landmarks, or attractions. They provide a visual reference for where specific features are located within the map's context.
Here is a map of Illinois.http://geology.com/cities-map/illinois.shtml
A political map typically shows cities, countries, and capitals. It displays the boundaries of countries and major cities, along with the locations of capital cities. This type of map is commonly used for political and educational purposes.
a "world map"...
world map
a political map