# What Is the Square Root of 72?

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A perfect square is a number with an integer as its square root. This means that it's a product of an integer with itself. In decimal representation, the square root of 72 is 8.485 when rounded to four significant figures. Because it's not a square number or perfect square, you can solve it quickly with a scientific calculator. If this option is unavailable, there are a couple of ways you can use to arrive at a solution. If this alternative can't be used, there are a couple of tricks you can use to arrive at a solution.