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Kategori : Keliling bangun lingkaran
Jawaban :
K 1/2 = 1/2 . π . d
k 1/2 = 1/2 . 22/7 × 7
K 1/2 = 11 cm
= 2 x 22/7 x 7 cm
= 2 x 22
= 44 cm
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