Round to nearest tenth. Tens place is the first place after the decimal. So we look at the 2 and decide if it needs rounded up or if it stays the same. To determine this, look at the next number. If the next number is less than 5, then 2 stays the same. If the next number is greater than 5, then 2 rounds up. The next number is 1. Which is less than 5. Therefore we do not round up. The 2 stays the same. 9.2 is the square root of 85 rounded to the nearest tenth.
If the circumfrence goes across the circle, and the radius goed halfway, substitute the measuremants. C/2. So, divide 72.22 by 2 and you get 36.11 feet!
