To find the circumference you need to use 3.14 as pi and multiply it by the diameter which is 20 inches which the answer is 62.8 which would round to 63 so about 63 olives|
To find the area use the radius which is always half of the diameter and square it by multiplying itself by itself then multiply it by pi (3.14) which is so the answer for the area is 314 inches squared.
And the circumference is never squared just it’s unit, ( feet, inches, etc.).
