Identify the square root of three as either rational or irrational, and approximate to the tenths place. : ≈ 1.7 Irrational: ≈ 1.7 Rational: ≈ 1.8 Irrational: ≈ 1.8 Rational

3 is rational; the square root of 3 is not.  I remember that sqrt(3) is approx. 1.732.  Rounding this off to the nearest 10ths place, we get 1.7.