The two labeled angles are alternate interior angles, and as such, they are the same.
From this result you can build the equation

and solve it for x: subtract 13x from both sides to get

and add 2 to both sides to get

Check: if we plug the value we found we have

So the angles are actually the same, as requested.
Approximately equal to symbol
And it’s mostly used in terms of numerical approximations
I think the answer is x>-3
Answer:
Step-by-step explanation:
It's easier to convert the angle into degrees.
5π/8 ≅ 112.5°, which is in quadrant II