Is 91 a perfect square?

No, 91 is not a perfect square. Its square root is irrational.

What is 9.5393920142 squared?

9.5393920142 squared is approximately 91. (9.5393920142)² ≈ 91

√91 = 9.5393920142. 91 is not a perfect square; the result is irrational.

Instant answer with step-by-step solution

√91 = 9.5393920142

√91 = 9.5393920142

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

We need to find √91 — a number that when multiplied by itself equals 91.
91 is not a perfect square. Its square root is irrational.
It falls between √81 = 9 and √100 = 10.
Using the formula √N = N^(1/2): √91 = 91^0.5 = 9.5393920142
Verification: 9.5393920142 × 9.5393920142 ≈ 91 ✓ (rounded to 10 significant figures)

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