Question

Which of the following is irrational?

Answer 1

$\sqrt{2}$

A square root of any number that won't result in a whole number is irrational.

In this case, $\sqrt{2}$ is irrational.

Answer 2

Answer:

$\sqrt{2}$

Step-by-step explanation:

the other 3 are perfect squares and have rational answers.

$\sqrt{1.44} =1.2\\\sqrt{1}= 1\\\sqrt{4} =2$