Hey there!
The distance around a circle is its circumference. We are given the radius of the circle. To find the circumference, we need to find the diameter and multiply it by pi. The diameter is twice the radius. We multiply our radius by two..
5*2=10
Then we multiply by 3.14
10*3.14=31.4
Therefore, we will need 31.4 feet of ribbing to go around the rug.
I hope this helps!
Answer:
In order to know, the number of rib, we have to calculate the circumference of the circle:
C = 2πr
C = 2 * 3.14 * 4
C = 25.12 [ Approx. 26 feet ]
In short, Your Answer would be Option B
Hope this helps!