I believe the answer is 54%.
Hope this helps!
Answer:


Step-by-step explanation:
Given
See attachment for triangles
Solving (a)

The tan of an angle is:

From the given triangle.


So, we have:

Solving (b)

The cos of an angle is:

From the given triangle.


So, we have:

The answer will be: 1,000,000 if you round to the nearest hundred thousands. Hope it helps! :D