Question

study the names of polygons
3 sided triangle
4 sided quadrilateral
5 sided pentagon
6 sided hexagon
8 sided octagon
10 sided decagon

1. regular polygon - a polygon with all sides congruent.
2. irregular polygon - a polygon that has a different side length.
3. perimeter - a distance around a shape.

the unit for perimeter is cm, m, km, (single unit because it is length /distance)

Explanation:

Step1: Recall polygon names

Based on common geometric knowledge, polygons are named according to the number of sides.

Step2: Match side - number to name

A 3 - sided polygon is a triangle. A 4 - sided polygon is a quadrilateral. A 5 - sided polygon is a pentagon. A 6 - sided polygon is a hexagon. An 8 - sided polygon is an octagon. A 10 - sided polygon is a decagon.

Answer:

3 sided: triangle
4 sided: quadrilateral
5 sided: pentagon
6 sided: hexagon
8 sided: octagon
10 sided: decagon