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Tentukan keliling bangun di atas Jawab

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Keliling 3/4 lingkaran

K = 3/4Ï€d

= 3/4 × 22/7 × (7 × 2)

= 3/4 × 22/7 × 14

= 3/4 × 2 × 22

= 3/4 × 44

= 44/4 × 3

= 11 × 3

= 33 cm + 14 cm

= 47 cm

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