Here's how we figure that out:

* Identify the tenths place: The tenths place is the first digit after the decimal point, which is 1 in this case.

* Look at the next digit: The digit after the tenths place is 2.

* Rounding rule: If the digit after the tenths place is 5 or greater, round the tenths digit up. If it's less than 5, keep the tenths digit the same. Since 2 is less than 5, we keep the tenths digit as 1.