If the number of lines of symmetry in a polygon is equal to the number of sides it has, then it must be a/an
A regular polygon if all its sides and angles are equal to each other and there are as many lines of symmetries as there are sides/angles. That’s the maximum number of lines of symmetry that a polygon can have.So, if the number of lines of symmetry in a polygon is equal to the number of sides it has, then it must be a regular polygon.