Answer:
45 sides
Explanation:
No matter, how many sides a regular polygon has, the total sum of all the exterior angles is ALWAYS 360°. We can find "each exterior angle" by using the formula shown below:

Where
n is the number of sides
Now, we know "Each exterior angle" = 8°, so we substitute and find "n", the number of sides:

So, the polygon would have 45 sides.