Answer:
Centimeters probably. Maybe millimeters, I don't klow if this is multiple choice question.
Step-by-step explanation:
They are a small unit and a common one most people can find on rulers.
The one in the middle is 12 for the median = 8
The radius of circle M would be 5 millimeters.
The radius is half of the diameter
I believe it’s 36 sorry if it’s incorrect