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Verified answer
Mapel MatematikaBab Lingkaran
Diameter = 42 cm
Jari-jari = 1/2 diameter = 21 cm
Luas = πr^2
Luas = 22/7 x 21 x 21
Luas = 22 x 3 x 21
Luas = 1386 cm^2
luas = *
* = 1386cm2
jawaban = 1386 cm2
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