Question

Which number is irrational

Answer 1

For this case, we have by definition, that an irrational number is a number that can not be expressed as a fraction
`\frac {a} {b}`, where a and b are integers and b is nonzero.

Some examples are:

`\sqrt {2}, \sqrt {3}, e, \pi.`

So, that the answer is
`\pi.`

Answer:

Option C