The square root of 3 is 1.7320508, or approximately 1.73. The calculation may be quickly performed by hitting the square root symbol followed by 3 on a calculator.
The square root of a number is the value that equals the original number when it is multiplied by itself. For example, the square root of 16 is 4, as 4 x 4 = 16, and the square root of 9 is 3, as 3 x 3 = 9. Identifying a number's square root may be used to solve the distance between two points, identify the length of a side of a right triangle, solve quadratic equations and find normal distribution and standard deviation in data sets.