To figure out circumference, you need to know that it is equal to 2πr. So, it would be 2 times 3.14 times 11. That would give you the answer of 69.08.
To figure out the area , you need to know that it is equal to πr². So, it would be 11 times 11 which would 121 multiplied by 3.14 which would be 379.94
