Chapters

A polygon is a plane bounded by three or more non-aligned line segments.

### Components of a Polygon

## Sides

## Vertices

## Diagonal

## Angles

## Area and Perimeter

## Convex Polygons

All of its angles are less than 180°.

All of the diagonals are internal.

## Concave Polygons

At least one angle measures more than 180°.

At least one of the diagonals is outside the shape of the polygon.

## Equilateral Polygons

All sides are equal.

## Equiangular Polygons

All angles are equal.

## Regular Polygons

They have equal angles and sides

## Irregular Polygons

They do not have equal angles and sides.

### Types of Polygons by Sides

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