What is the square root of 81?

Here we will explain and calculate the square root of 81. First, note that the square root of 81 can be written with a mathematical symbol like this:

√81

When we calculate the square root of 81, the answer is the number (n) that you can multiply by itself that will equal 81. In other words, n × n should equal 81. Therefore, the equation to solve the problem is as follows:

n² = 81

And when we solve the equation above, we get the answer to the square root of 81:

√81 = 9

Square Root Calculator
Here you can get the square root of another number: