A full circle is 360°.
x + 3x + 90° = 360°
4x = 360° - 90°
4x = 270°
4x/4 = 270°/4
x = 67.5°
Hope it helps! Make me brainliest if it’s correct.
Answer:

Step-by-step explanation:


The correct answer is: The point where the lines meet. Hope this helps!!
I do not belive my answer is right but 100:110 maybe? Sorry if I'm wrong.
Edit, my calc is broken, sorry for the inconvenience, please disregard.