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Verified answer
Mapel : MatematikaMateri : Aritmatika dan Sosial
Sub Materi : Lingkaran
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K = phi d
K = 22 / 7 × 42
K = 22 × 6
K = 132 cm
Semoga bermanfaat.....
-Prisco
= π x d
=22/7 x 42
=132 cm