Respuesta :

Answer:

C≈395.84mm

Step-by-step explanation:

C=2πr=2·π·63≈395.84067mm

Hope this helps

Answer:

395.64mm²

Step-by-step explanation:

r = 63mm

circumference of circle = 2[tex]\pi[/tex]r

= 2 × 3.14 × 63

= 395.64mm²