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p = 22 cm
l = 6 cm

D = 22 cm - 8 cm
    = 14 cm

r = D/2
  = 14 cm / 2
  = 7 cm

Luas = Luas Persegi Panjang + Luas setengah lingkaran
         = (p x l) + (1/2.π.r²)
         = (22 x 6) + (1/2 x 22/7 x 7²)
         = 132 + (1/2 x 22 x 7)
         = 132 + 77
         = 209 cm²