Square Root of 84
The square root of 84 is approximately 9.165151, or exactly 2√21 in simplified radical form. No, 84 is not a perfect square. Its square root is irrational and never terminates or repeats as a decimal.
√84
9.165151
Simplified Radical Form
2√21
Perfect Square
No
√84 is irrational — its decimal form (9.165151) never terminates or repeats. The simplified radical form (2√21) is the exact value.
Frequently Asked Questions
What is the square root of 84?
The square root of 84 is approximately 9.165151, or exactly 2√21 in simplified radical form.
Is 84 a perfect square?
No, 84 is not a perfect square. Its square root is irrational and never terminates or repeats as a decimal.
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