Respuesta :

Answer:

1080°

Step-by-step explanation:

sum = 180 ( n - 2)

note that octagon has 8 sides

therefore

sum = 180 ( 8 - 2)

sum = 1080°

Answer:

c.  1080

Step-by-step explanation:

= 180 x ( 8 - 2)

= 1080

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