The difference of the circumference of the pie container and pie is 6.3 inches.
Explanation:
Given,
The radius of the pie container (R) = 9 in
The radius of the pie (r) = 8 in
To find the difference of the circumference of the pie container and pie.
Formula
The circumference of a circle = 2πr
Now,
The circumference of the pie container = 2×π×9 = 18π in
The circumference of the pie = 2×π×8 = 16π in
Hence,
The difference = 18π-16π = 2π = 6.28 = 6.3 inches (approx)