Answer: x<27
Explanation:
Let's denote the unknown side length as "x". To form a valid triangle, the sum of any two sides must be greater than the third side. Therefore, we can write the following inequality based on the given information:
11 + 16 > x
Simplifying this inequality, we have:
27 > x
Thus, the inequality representing all possible lengths of the unknown side is x < 27.