Pliss tolong dijawab soal ini Beserta caranya

9. r=14
keliling = phi*diameter
keliling 1/4+1/4 lingkaran = 1/2*22/7*28 = 44cm
total keliling = 44+26*4 = 148cm (B)

10. (14*14) + (1/2*22/7*7*7)
      = 196+77 = 274cmkuadrat