Square Root of 420 (√420 = 20.493902)

Exact Answer

√420 = 20.493902

Principal Root (√420)

20.493902

Real Roots

±20.493902

Perfect Square?

No (Irrational)

Exponential Form

420^(1/2)

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Step-by-Step Solution: √420 = 20.493902

Step 1

Definition of Square Root

The square root of 420 is the number y such that y × y = 420.

√420 = 20.493902

Summary & Alternative Representations

Property / Format	Value
Principal Root (√420)	`20.493902`
Real Roots	`±20.493902`
Perfect Square?	`No (Irrational)`
Exponential Form	`420^(1/2)`

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Frequently Asked Questions

Is 420 a perfect square?

No, 420 is not a perfect square; its decimal approximation is 20.493902.