Exercise: Aggregation and Constructive Methods

Exercise: Shore islands

In this exercise, identify the islands that are 100 km from the African continent. For that, you should use the countries and the minor_islands datasets, which are already provided in the code widget. Plot the resulting islands on a map with the 150 km limit around the African continent as a visual reference. We can assume 1.0° in decimal degrees corresponds to 150 km.

Note: The relationship between angles (latitude and longitude) and distance (i.e., meters or kilometers) depends on the latitude. For instance, 1.0° corresponds to 111 km around the equator line.

Write your code after the comment.