Respuesta :

Answer:

15

Step-by-step explanation:

what i did since we know a triangle is 180°, I added all the x's so all the x's added up to 12. i did 180÷12 because you want to find what just one x is

w. k. t, sum of interior amgles of a triangle = 180

therfore 6x + 4x + 2x = 180

12x = 180

x = 15

so, 6x = 6(15)

= 90

4x = 4(15)

= 60

2x = 2(15)

= 30

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