Answer:
31.4 yards.
Step-by-step explanation:
We have been given that Kiyo used wire fencing to form a border around a circular region in his backyard. The radius of the circular religion was 5 yards.
To find the total length of the border we will use circumference of circle formula.
, where r represents radius of circle.
Upon substituting and in above formula we will get,
Therefore, the total length of the border is 31.4 yards.