To find the value of \( x \) given the angle of 54° and the relationship with square and \( x \), I will assume that you may be looking for a simple relationship between these values, possibly involving a complementary or supplementary angle, or some relation in a geometric context.
If we consider a right triangle where one angle is 54°, the other non-right angle would be:
\[ x = 90° - 54° = 36° \]
If you are looking for supplementary angles, where the sum equals 180°:
\[ x = 180° - 54° = 126° \]
Without further context, it's challenging to provide a definitive answer. Could you clarify the relationship you're looking for or any additional details about the context of "square and X"?