Square Root of 405 (√405 = 20.124612)

Exact Answer

√405 = 20.124612

Principal Root (√405)

20.124612

Real Roots

±20.124612

Perfect Square?

No (Irrational)

Exponential Form

405^(1/2)

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Step-by-Step Solution: √405 = 20.124612

Step 1

Definition of Square Root

The square root of 405 is the number y such that y × y = 405.

√405 = 20.124612

Summary & Alternative Representations

Property / Format	Value
Principal Root (√405)	`20.124612`
Real Roots	`±20.124612`
Perfect Square?	`No (Irrational)`
Exponential Form	`405^(1/2)`

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Frequently Asked Questions

Is 405 a perfect square?

No, 405 is not a perfect square; its decimal approximation is 20.124612.