Question

Help me asap please!!!

Answer 1

Well, just by looking at the beginning of the problem, Jamelia had made the common mistake of thinking that 
$\sqrt{72}$ (8.4852...)
is equal to 
$2* \sqrt{36}$ (12)

If you want to estimate a square root like 72, simply find squares that would fit around the number you are looking to find, in our case, 72.

So 9*9 is 81, which is too high and 8*8 is 64, which is too low. So you know that somewhere between those numbers is what your root of 72 is!