It is irrational because it can't be expressed as a fraction
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irrational
The squqre root of 1,600 is 40. That's rational.
Square root of 40 approximately = 6.324555325 / square root of 40 = 0.790569415
NO!!! '40' is the square root of '1600' The square root of '600' is 24.49489743...
No - remember that you cannot have a negative square root. Instead, the square root should be +40 as opposed to -40.