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how many sides does a regular polygon have if each exterior angle measure is 45 degrees

Please explain your answer, I really don't understand this.

Respuesta :

Answer:

8

Step-by-step explanation:

we know,

exterior angle of polygon = 360°/n (where 'n' is number of sides)

then,

45° = 360°/n

n = 360°/45°

n = 8

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