How to calculate +- 500m from coordinates [55.862525,37.537452]?

Question

Mathematics

and correctly read the specified coordinates?

Answer 1

1. From here we take the mathematical apparatus https://www.movable-type.co.uk/scripts/latlong.html
2. Correctly set the task
2.1 if there is a set of points, among which you need to choose those that satisfy the condition, then directly copy /rewrite the code from there and check for each pair of points.
2.2 if there are no points, but you need to get an array of points that can satisfy the condition, then specify the task.