What is the square root of 4.9?

1 Answer
Sep 4, 2015

sqrt(4.9) ~~2.2136color(white)("XXXXXXX")4.92.2136XXXXXXX(primary square root)
or
square root of 4.94.9 is +- 2.2136color(white)("X")±2.2136Xif you allow negative roots)
(...and let's not get into this discussion again)

Explanation:

There really isn't any reasonable way to determine this except by using a calculator