Question

Which of the following numbers is irrational?

A. 5/9
B. 3.15
C. square root of 5
D. 8.341

Answer 1

The correct answer among all the other choices is C. square root of 5. Out of all the given examples, square root of 5 number is irrational. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help. 

Answer 2

An irrational number is a non terminating, non repeating number. Therefore, square root of 5 is an irrational number.