Respuesta :

Answer: Ssh=1323π

Step-by-step explanation:

  • The point O Centre  big circle r1=2r2=4 then radius small cirler r2=21
  • Then S1=42²π=1764  ; S2=21²π=441 π  S(shaded)=S1-S2=?
  • Ssh=(1764-441)π=1323π