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Verified answer
✔ Mapel = Matematika✔ Kelas = 5 SD
✔ Bab = Bangun Datar
✔ Materi = Lingkaran
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π x r² = Luas Lingkaran
π x r² = 38,5 m²
r² = 38,5 m² : 22/7
r² = 38,5 m² x 7/22
r = √12,25 m²
r = 3,5 m²
Keliling Kolam
= 2 x π x d
= 2 x 22/7 x 3,5 m
= 7 m x 22/7
= 22 m
Jawabannya B
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