27-10-2021
Mathematics

contestada

Find the measure of the exterior angle.

Find the measure of the exterior angle class=

Respuesta :

jinoly65 jinoly65

27-10-2021

Answer:

30

Step-by-step explanation:

4x = 90 + x

4x - x = 90

3x = 90

x = 90/3

x = 30

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