Answer: 14 and 15
Work Shown:
Through trial and error, you should find that,
14^2 = 14*14 = 196
15^2 = 15*15 = 225
The value 198 is between 196 and 225. It is much closer to 196, than it is to 225.
So sqrt(198) is between 14 and 15. The value of sqrt(198) is much closer to 14 than it is to 15.
Using a calculator, we see
sqrt(198) = 14.07
which confirms our answers