



 
Hi Robert. For part (a), you know the radius of the bull's eye, and want to know the area. What formula do you have that has an A for area and an r for radius? Use that. For part (b), you need to do three steps. First, find the radius of the whole board. Add the bull's eye's radius and the extra amount for each ring. Second, calculate the area of the whole board, using the same Hope this helps,  


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