Respuesta :

Answer:

  1. C=31.4cm ,                A=78.5cm²
  2. C=50.24mi.               A=200.96mi.²
  3. C=25.12in.                  A=50.24in.²
  4. C=37.68Km               A=113.04Km²

Step-by-step explanation:

C=2 [tex]\pi[/tex] x r

so for c you times 2 [tex]\pi[/tex] by your radius

Area is [tex]\pi[/tex] times diameter (diameter is two times your radius)

Hope this helps...]

pleasseee mark brainliest, I spent  alot of time on this question....thanks, have a lovely day