Answer:

Step-by-step explanation:
From the diagram:

Now Angle 1 and Angle 2 are on a straight line, therefore:

3 is the correct answer i think
If I understand what kind of answer this question is asking for it should be .12 mile above sea level.
2 x 10000 = 20000
2 x 10 x 10 x 10 x 10
The answer is 2 x 10^4