Question

What is the square root of a PI

Answer 1

1.772810 something 
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Answer 2

The square root of π has to be less that the value of π itself (like the square root of 81 is 9), I don't know how you got 12.42477796 as the square root of π if π equals 3.141592654. 
Τhe square root of π = 1.772453851, which is less than 3.14.

Hope this helps:)