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The square root of 72 is an irrational number and there is no such thing as a best approximation for any irrational number. By definition, all Irrational Numbers are represented by infinitely long decimal strings and it is always possible to improve the approximation by calculating the value to one more decimal place.
8.48528 should be sufficiently accurate for most purposes.
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Continue Learning about Algebra
What is the square root of 216 divided by the square root of 3?
72
What is the positive square root of 72?
6 root 2 or 8.485281374
What is the square root of 72 simplified?
√-72 = i√(622) = i6√2
What is the square root of 72 in radical form?
6 *sqrt(2)
What is the Square root of 72 rounded to the nearest tenth?
72.0
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