Respuesta :
Answer:
[tex]circumference = 2\pi \: r \\ = 2 \times 3.14 \times 63 \\ = 395.84 \: mm[/tex]
Answer:
I believe it's 395.84 but I might be wrong
Step-by-step explanation:
the formula for circumference is c= 2 pi r
so in this case the formula was 2 pi 63 :)