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Matematika SD Kelas VI
1] luas = (1/4) x π x d² = 70.650
(1/4) x 3,14 x d² = 70.650
d² = 70.650 / 0,785
d = √90.000
d = 300 m
2] keliling = π x d
keliling = 3,14 x 300
keliling = 942 m
3] banyak pohon = keliling : jarak antar pohon
banyak pohon = 942 : 6
banyak pohon = 157 pohon