What algorithm should be used to determine the most extreme points of an area?

Question

Algorithms

Good day to all!
There are many coordinates (absolutely randomly spaced points within the same city) in the form lat: lng It is
necessary to connect the most extreme points to each other in order to limit the area
That is, so that all other points remain inside the resulting area
I can’t figure out how to determine exactly the most extreme points
Well, in what order to connect them together to get exactly the area, and not something else.
The biggest problem is that I don’t even know how to ask Google about it, because the task does not fit into an adequate Google query

Answer 1

Google: "polygon describing points"
First result: Construction of minimal convex hulls
Will it drive?

Answer 2

Request to Google: convex hull algorithms
There are many algorithms. Personally, I like QuickHull (named so because it uses an idea similar to quick sort) the best - IMHO the best balance between speed and code clarity. Both the algorithm itself and ready-made implementations are googled without problems.