What is the square root of 121? Question : What is the square root of 121? Answer : The square root of 121 is 11. 7 little words Two-door Plymouth model Bruise around the eye Roosting rod 7 Little Words Easy mark 7 Little Words Hockey footwear 7 Little Words Hairstyle 7 Little Words Painter Jackson 7 Little Words 1940s Fairey aeroplane Kind of gull 7 Little Words Insignificant person 7 Little Words