Political geography studies all the following except Economies ( answer A). Political geography is concern with study of both spatially uneven outcome of political processes and the ways in which political processes are themselves affected by spatial structure. It also involve study of boundaries and their associated region.
Answer:
.
Explanation:
We are given that,
In △EFG,


To find: 
As we know that, angles opposite to the congruent sides of a triangle are congruent.
Thus, In △EFG
if
and 
then it implies 
Hence, we get
.
The answer is..........Rilles