Q:
# What Is the Square Root of 160?

**The principal square root of 160 is 12.65 to two decimal places.** The other square root of 160 is minus 12.65 to two decimal places. All real numbers have two square roots, one of which is the negative of the other.

A square root, x, of a number, n, is the value of x that satisfies the equation x^2 = n, where x^2 means x multiplied by x. The positive square root is called the principal square root. Most calculators will give only the principal square root when asked to calculate the square root of a positive real number, such as 160.

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