The inner circle of a donut has a radius of 1cm . the outer circle has a radius that is 3cm longer than the inner circle. what us the area of the donut

(π4²)-(π1²)
The area of the donut is 47.12388

The question is kind of confusing. if it's asking how many variations of answers can you give. then do 4^5 for your answer.this would be something like the first question could be a and the 2nd c or first b next c etc. if you can, ask the teacher for a better confirmation of what it's asking. if i'm assuming correctly what it's asking, it's 625 different variations.