# What is a regular polygon?

#### short answers for big questions

All the convex polygons having the following features are regular:

• All their sides are congruent (they have the same size).
• All their internal angles are congruent (they have the same amplitude).

All the regular polygons have the following features:

• If the amount of sides is even, então n/2 diagonals will pass through the centre of the polygon; (n means the amount of sides);
• If the amount of sides is odd, none of its diagonals pass through the centre of the polygon.

## What is an irregular polygon?

This is an easy question to answer. It means all the polygons that are not regular.

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