The square root of 130 is 11.40, rounded to two decimal places. To find the square root using the Google search engine, simply type "sqrt(130)" into the Google search box.
The square root of a number is the inverse of squaring a number. To square a number, multiply that number by itself. For example, the square of three is nine because three multiplied by three equals nine. Conversely, the square root of nine is three. To take the square root of nine, determine what number equals nine when multiplied by itself.
When asked for a square root of a number that is not a perfect square, the easiest route is to use a calculator. For estimation purposes, determine the perfect squares that are above and below the number. The correct answer is between those two squares.
In the case of 130, 121 and 144 are the closest perfect squares above and below that number. The square root of 121 is 11. The square root of 144 is 12. Therefore, expect the square root of 130 to be between 11 and 12.