Question: Which of the following best describes a regular polygon?

Options:

1. A polygon with all sides of different lengths.
2. A polygon with all angles equal and all sides equal.
3. A polygon that can be inscribed in a circle.
4. A polygon with at least one angle greater than 180 degrees.

Correct Answer: A polygon with all angles equal and all sides equal.

Solution:

A regular polygon is defined as a polygon where all sides and angles are equal, making option 2 the correct description.