Popular: 1/2 + 3/4 20% of 150 GCF(12, 18) 100 ÷ 7 √144 Circle r=7 sin(30°) 255 in Binary
Exact Answer
√66 = 8.124038
Principal Root (√66)
8.124038
Real Roots
±8.124038
Perfect Square?
No (Irrational)
Exponential Form
66^(1/2)
√ Square Root of: OR Power (xy): ^

Step-by-Step Solution: √66 = 8.124038

Step 1

Definition of Square Root

The square root of 66 is the number y such that y × y = 66.
√66 = 8.124038

Summary & Alternative Representations

Property / FormatValue
Principal Root (√66)8.124038
Real Roots±8.124038
Perfect Square?No (Irrational)
Exponential Form66^(1/2)

Frequently Asked Questions

Is 66 a perfect square?

No, 66 is not a perfect square; its decimal approximation is 8.124038.