can some one help me

Answer:
B
Step-by-step explanation:
If 5 is the radius, then we need to multiply by 2 to get the diameter.
10 is the diameter.
Multiply by pi to get your answer
10pi is 31.4.
B-31.4.
Hope this helped!
Answer:
31.4yard long wire is needed.
perimeter of circle=2πr=2×22/7×5=31.4yard