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1. What is the sum of the measures of the interior angles of an octagon? 1080
2. What is the sum of the measures of the interior angles of a 25-gon?
3. What is the measure of each interior angle of a regular hexagon?
4. What is the measure of each interior angle of a regular 16-gon?
5. What is the sum of the measures of the exterior angles of a decagon?
6. What is the measure of each exterior angle of a regular 30-gon?
7. If the exterior angle of a regular polygon is 22.5°, how many sides does it have?
8. If the interior angle of a regular polygon measures 170°, how many sides does it have?
