Yes, it is irrational. It cannot be expressed in the form of a fraction where both the numerator and denominator are integers, moreover, the exact value of root 8 is hard to calculate as it has too many decimal places.
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No it's 8, which is not irrational.
The square root of 8 is irrational and real.
The square root of 8 over 25 is irrational, and real.
It can't be expressed as a whole number. The square root of two is irrational, and the product of an irrational number and a rational number is also irrational. So 8*sqrt(2) is irrational.
yes because √2 is irrational and √8= √[4*2]=2√2