30 Dec 2014 Home » Trivia Crack » What is the square root of 121? What is the square root of 121? Posted in Trivia Crack By emoji On December 30, 2014 Question: What is the square root of 121? Choices: 10 11 21 13 Correct answer: 11 Post Views: 178 Related Posts What is the most populated city in the Western Hemisphere? Who is Tiger Woods? Who portrayed Joey Tribbiani in the American TV series ‘Friends’?