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Kelas 4 MatematikaBab Bangun Datar Sederhana
1] d = 2 x r
d = 2 x 1
d = 2 cm
2] Luas = π x r x r
Luas = 3,14 x 1 x 1
Luas = 3,14 cm²
1.
K = 2 × r
K = 2 × 1
K = 2
2.
L = π × r × r
L = 3,14 atau 22/7 × 1 × 1
L = 3,14 atau 22/7
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