Respuesta :

Answer:

Step-by-step explanation:

The small square represents a 90 degree angle. So you know 1 angle

5x + 4x + 90 = 360 because you have a circle in the center. Combine left.

9x + 90 = 360         Subtract 90 from both sides

9x = 360 - 90          Combine

9x = 270                  Divide by 9

x = 270/9

x = 30