Answer:
about 113.1 inches
Explanation:
For π ≈ 3
The circumference is 36π, about 36·3 = 108 inches.
For π ≈ 3.1
The circumference is 36π, about 36·3.1 = 111.6 inches.
For π ≈ 3.14
The circumference is 36π, about 36·3.14 = 113.04 inches.
It appears to be appropriate for Kelly to buy about 113.1 inches of trim.