The square root of a negative number cannot be expressed with integers. The square root of a negative number is always imaginary.
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Square root of 217 for apex
Irrational.
10.95445Square Root of 120The square root of 120 is 10.954, but it is easier to say "square root of 120." You could also reduce itSQRT(120) = SQRT(12) * SQRT(10) = [SQRT(4)*SQRT(3)] * [SQRT(5) * SQRT(2)] =2 * SQRT(3) * SQRT(5) * SQRT(2)It is common to reduce large numbers under the radical to a string of factors having prime numbers under the radicals.
120
120 rounded to the nearest 10 is 120.