According to the given statements, the answers are as follows:
1. number of sides (n) = number of interior angles = number of exterior angles
2. All interior angles are congruent.
3. All exterior angles are congruent.
4. sum of interior angles = (n-2)180°.
5. sum of exterior angles = 360°.
6. measure of each interior angle = (n-2)180°/n.
7. measure of each exterior angle = 360°/n.