Which of the following polygons is not a regular polygon?

Answer: the rectangular
Step-by-step explanation:
All the sides are equal for a regular polygon
Answer:
The Rectangle Is Not A Regular Polygon, Option 2
Step-by-step explanation:
For a polygon to be regular all sides and angles have to be the same! A square is an example of a regular polygon, since all sides and angles are even, a rectangle is not.