Respuesta :

ashundeiji45

Answer:

67.5

Step-by-step explanation:

3x + x = 4x

360-90=270

270 divided by 4 = x

Hope this helps! Have a nice life and Good Luck!

HajirahBibi
A full circle is 360°.

x + 3x + 90° = 360°

4x = 360° - 90°

x = 270°/4

x = 67.5°