Multiple choice general knowledge math & puzzles Square root of 2 ( a famous one we use in calculations) 1.414 1.735 1.448 1.659 Reveal answer Fill a bubble to check yourself A Correct answer Explanation The square root of 2 is a mathematical constant approximately equal to 1.41421. 1.735 is close to the square root of 3, while 1.448 and 1.659 are incorrect approximations.