Respuesta :

Hrishii

Answer:

A. 45°

Step-by-step explanation:

By exterior angle theorem:

x + 70° = 115°

x = 115° - 70°

x = 45°

hahaecho

Answer:

x= 45°

Step-by-step explanation:

triangles degrees all together are always 180°

x≠180°

a straight line is also 180°

180°-115°= 65°

70°+65°= 135°

180°-135°= 45°

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