Question

Needa know which one is irrational

Answer 1

√2

Explanation:

For a number to be "irrational", you cannot turn it into a fraction.

2 = 2/1

√4 = 2/1

2^2=4/1

√2 = 1.41421356237

See which one is not a fraction?

That would be your answer because it is irrational