Your answer is a regular hexagon inscribed in a circle.
The Nile river shifted so the population had to shift as well
This point is Libya, so the cities could be in South America for example
So we have
Mexico City
Montevideo
Brasilia
Buenos Aires
Asuncion
Answer:
∠I ≅ ∠K
This is the answer i have concluded from looking at others, not 100%