tolong jabin gw bingung banget

[tex]530.66 = 3.14 \times {r}^{2} \\ = \frac{530.66}{3.14} = {r}^{2} \\ 169 = {r }^{2} \\ r = \sqrt{169 } = 13[/tex]

L = πr²
r²=L :π
  =530,66 m² : 314/100
  =530,66 x 100 /314
  = 53066/314
  = 169 m
r=√169
  = 13 m
jadi r atau jari2nya = 13 m
jawab.b.13 m
semoga bantu yaaa