Final answer:
The verbal expression of the statement is: A polygon does not have three sides if and only if it is not a triangle.
Step-by-step explanation:
The verbal expression of the statement is: A polygon does not have three sides if and only if it is not a triangle.
This can be represented using logical symbols as: !p ⇔ !q.
Translated into words, this means: If a polygon does not have three sides, then it is not a triangle, and conversely, if a polygon is not a triangle, then it does not have three sides.