Square Root Calculator › Square root of 72
Square Root of 72
√72 ≈ 8.485281
72 is not a perfect square, so √72 is an irrational number that is approximately 8.485281. In simplified radical form, √72 = 6√2.
√72 lies between √64 = 8 and √81 = 9.
| Number | 72 |
| Square root (decimal) | 8.485281 |
| Simplified radical | 6√2 |
| Perfect square? | No |
| Rational? | No |
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Frequently asked questions
Is 72 a perfect square?
No, 72 is not a perfect square, so its square root is irrational and approximately 8.485281.
What is the square root of 72 in simplest radical form?
√72 = 6√2 in simplest radical form.