The square root of 162 is 12.72. The number can be found by using the square root function on a calculator or by estimating it based on the values of two perfect square roots that surround the number.
Using simplification, the square root of 162 can be expressed as 9 times the square root of 2. This expression can be found by factoring 162 into 81 and 2 and rewriting the equation as the square root of 81 times the square root of 2. Solving for the square root of 81 results in 9 * sqrt(2), where sqrt indicates a radical sign. The square root of 2 can be solved on a calculator or by using an averaging technique.