1. The problem statement, all variables and given/known data 2. Relevant equations 3. The attempt at a solution here is my approach, I take the whole area, which is π16 then subtract the unshaded region now to find the unshaded region's area, I use rectangular coordinates. my bounds are from -2 to 2 for x and the the top and bottom of the larger circle : sqrt (16-x^2) and -sqrt (16-x^2) but now I don't know if there should be an integrand or assume it is 1 if none is given?