SOLUTION: what is the square root of 20

Question 796222: what is the square root of 20
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The square root of 20, , can be "simplified", or approximated.
It's an irrational number, meaning that there is no fraction or decimal number exactly equal to it.

Simplifying:

Approximating:
One of my calculators says that is 4.4721359, and another one says 4.472135955, but those are just approximations.

NOTE: You can write "square root of 20" as "sqrt(20)" here, just as you can write 3^2 for and x^4 for .
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