Is 392 a perfect square?

No, 392 is not a perfect square. Its square root is irrational.

What is 19.7989898732 squared?

19.7989898732 squared is approximately 392. (19.7989898732)² ≈ 392

√392 = 19.7989898732. 392 is not a perfect square; the result is irrational.

Instant answer with step-by-step solution

√392 = 19.7989898732

√392 = 19.7989898732

⚠ 392 is not a perfect square — result rounded to 10 significant figures

We need to find √392 — a number that when multiplied by itself equals 392.
392 is not a perfect square. Its square root is irrational.
It falls between √361 = 19 and √400 = 20.
Using the formula √N = N^(1/2): √392 = 392^0.5 = 19.7989898732
Verification: 19.7989898732 × 19.7989898732 ≈ 392 ✓ (rounded to 10 significant figures)

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