Considering the given area of the square, it is found that it's side length is an irrational number.
<h3>What is the missing information?</h3>
This problem is incomplete, but researching it on a search engine, it asks if the side length of the square of area 89 cm² is rational or irrational.
<h3>What is the formula for the area of a square?</h3>
The area of an square of side length s is given by s squared, as follows:
A = s².
In this problem, the area is of 89 cm², hence:
s² = 89.
s = sqrt(89).
The square root of 89 is a non-exact root, hence it cannot be represented by fraction and is an irrational number.
More can be learned about the area of a square at brainly.com/question/10489198
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