Respuesta :

Step-by-step explanation:

We know that

[tex] \sf \hookrightarrow \: \boxed{ \sf \: sum \: of \: two \: interior \: angles = exterior \: angle} \\ \sf \hookrightarrow \: 50 + x = 3x - 54 \\ \sf \hookrightarrow \: x - 3x = - 54 - 50 \\ \sf \hookrightarrow \: - 2x = - 104 \\ \sf \hookrightarrow \: 2x = 104 \\ \sf \hookrightarrow \: x = \frac{104}{2} \\ \sf \hookrightarrow \: x = 52[/tex]

MrPerfectionist

Answer:

x= 52

exterior =102

Step-by-step explanation:

50+x=3x-54

50+54=3x-×

104=2x

52=x

3(52)-54

156-54=102

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