The square root of 5 is an irrational number
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The square root of four twenty-fifths, is two fifths, because of the fact that the square root of four is two and the square root of twenty-five is five.
The square root simplifies to six times the square root of five. The decimal form of that is approximately 13.41640786
~2.236067
Rounded to five decimal places, sqrt(89) = ±9.43398The square root of 89 (written √89 or 891/2) = 9.434 (3dp)
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