Answer:
180
Explanation:
To solve use these two formulas:
The interior angle of the polygon formula: (n-2)180/n
The exterior angle of the polygon formula: 360/n
When n is the number of sides in the polygon.
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To solve for the interior angles insert 5 for n and solve:

To solve for the exterior angles insert 5 for n and solve:

Then add two products:
