Respuesta :
Just divide 2pie on both sides so your equation would be C/2pie=r
You said C = 2 π r
Divide each side by 2 : C / 2 = π r
Divide each side by pi : C / 2π = r
Divide each side by 2 : C / 2 = π r
Divide each side by pi : C / 2π = r