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Verified answer
Mapel : MatematikaMateri : Lingkaran
⇔ Jari jari lingkaran
r = K/2π
r = 66/2 x 22/7
r = 66 x 7/44
r = 10,5 dm
⇔ Luas Lingkaran
L = πr²
L = 22/7 x 10,5²
L = 22/7 x 110,25
L = 346,5 dm²