Look at this in the other direction. is 2. is 3. Can you find any squares between 4 and 9? No. Can you find some numbers between 4 and 9? Yes.
Pick any number between 4 and 9 EXCLUDING 4 and 9. Would the square root be rational or irrational? Would this square root be within the limits of between 2 and 3 or not?
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And if that did not give you clear enough impression for finding irrational numbers between 2 and 3, let us see an expansion of the above table: