Polygons

This shape is the union of three or more conplanar segments which intersect at endpoints, with each endpoint shared by only two non-collinear segments

Polygons

What does polygon literally mean?

It means many angles

How’s the word polygon derived from two greek words

The words are: poly meaning “many”, gon meaning “angle”

What is the word polygon often thought as?

It is often thought as many-sided plane figure

Each endpoint where the sides meet is called the?

Vertex (vertices if its more than 2)

_________________ of a polygon are the sides with a common endpoint

Consecutive Sides

Which are the consecutive sides of this picture?

LY and YA, etc

These are the vertices which are endpoints of the same sides

Consecutive vertices

Which are the consecutive vertices of this polygon

L and Y of side LY, etc

How do we name a polygon

By listing its vertices in consecutive order, can be either clockwise or counter clockwise

Name this polygon.

ABCDEF

How do we classify a polygon?

Their classified by the numbers of sides they have

If some common polygons have more than 12 sides, how do we name them?

They're generally called n-gons, with n as the number of sides

Is a polygon that is both equilateral and equiangular

Regular polygon

These are polygons that is not equilateral and equiangular

Irregular polygons

Is a segment joining any non consecutive vertices of the polygon

Diagonal

The formula of diagonals in a polygon

n(d) = s (s-3)/2