Answer:
15.7
Step-by-step explanation:
d = 2r
d = 8 thus r = 4
area (kelly) = 4 x4 x [tex]\pi[/tex] = 16[tex]\pi[/tex]
area (paige) = 3 x 3 x [tex]\pi[/tex] = 9 [tex]\pi[/tex]
difference = 16 [tex]\pi[/tex] - 9 [tex]\pi[/tex] = 5 [tex]\pi[/tex] = 15.7
