Respuesta :

musiclover10045

All the angles make a full circle which needs to equal 360 degrees.

Add all the angles together to equal 360:

X + (x-10) + (4x-20) +(2x-10) + (x +10) = 360

Combine like terms:

9x -30 = 360

Add 30 to both sides:

9x = 390

Divide both sides by 9:

X = 390/9

X = 43.3333. ( 43 and 1/3)

Answer:

x = 43 1/3 degrees.

Step-by-step explanation:

All these angles add up to 360 degrees , so we have:

x - 10 + 4x - 20 + 2x - 10 + x + 10 + x = 360

9x - 30 = 360

9x = 390

x = 390/9

= 43 1/3 degrees

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