Question

My teacher keeps saying it’s wrong pls help, it’s question number 5

Which is an irrational number?

Answer 1

9514 1404 393

Answer:

A √2 is an irrational number

Explanation:

A: √2 ≈ 1.4142135623730950488... an infinite non-repeating decimal (irrational)

B: √4 = 2 (rational)

C: ∛8 = 2 (rational)

D: √16 = 4 (rational)