I think you mean population density lol if so then the answer would be the relationship between the size of a certain area in the number of people who live there. Because geographers use it to measure a number of people living in a certain area. I hope this helps!
Answer:
D) 54 degrees
Explanation:
The curves on the angles show which ones are equal to each other based on how many curves there are. Since both angle GDF and angle EDF have one curve, they are equal in their angle measurements.
Also the subject is mathematics not geography; you might be thinking of geometry which is part of mathematics. :)
