Respuesta :

Answer:

x = 134

Step-by-step explanation:

the exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

x is an exterior angle of the triangle , then

x = 53 + 81 = 134

Step-by-step explanation:

use the Exterior Angle theorem ....

(look at the picture..... )

so ..... x° = 53° + 81°

x° = 134° .......

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