What is the square root of 400?

Here we will explain and calculate the square root of 400. First, note that the square root of 400 can be written with a mathematical symbol like this:

√400

When we calculate the square root of 400, the answer is the number (n) that you can multiply by itself that will equal 400. In other words, n × n should equal 400. Therefore, the equation to solve the problem is as follows:

n² = 400

And when we solve the equation above, we get the answer to the square root of 400:

√400 = 20

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