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The square root of a non-perfect square may be irrational and therefore may not be easy to find. However, it need not be.

For example, 2.25 is not a perfect square but 2.25 = 9/4 and both 9 and 4 are perfect squares. So sqrt(2.25) = sqrt(9/4) = sqrt(9)/sqrt(4) = 3/2 = 1.5. Not that difficult!

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Q: What is the difference between finding the square root of a perfect square and the square root of a non perfect square?
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