Respuesta :

manitamaharjan7576

Step-by-step explanation:

x+3x+90=360

4x=360-90

x=270/4

x=67.5

Answer:

x=67.5°

Step-by-step explanation:

x + 3x= 270°

(x + 3x) → 4x

4x=270

4x/4=270/4

x=67.5°

Hope it helps! :)

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