Square root of 72

√72 ≈ 8.4853

√72 is an irrational number, so its decimals never end or repeat. It sits between 8 and 9 because 8² = 64 and 9² = 81.

√72 rounded

Simplest radical form

72 = 36 × 2 and √36 = 6, so √72 = 6√2.

Check the answer

8.4853 × 8.4853 ≈ 72.0003, which is very close to 72.

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Square roots near 72

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