The square root of 2.2 is 1.483239697419133. You can round it to however many places of decimals you require.
http://wiki.answers.com/Q/What_is_the_square_root_...

How is the answer written? Are there any brackets? If it's (2 + 2) x square root of 16  it's 16. If it's 2 + (2 x square root of 16)  it's 10. : Source(s) My braain (
http://answers.yahoo.com/question/index?qid=201109...

The answer to (x+2)2sqrtx) is 2xsqrtx+4sqrtx. Do you need
http://www.chacha.com/question/whatisthemultipl...

o+2 = X^2, Integer solution: o = n^22, X = n, n element Z
http://www.kgbanswers.com/x22owhatisxifyouso...
