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Verified answer
Tinggi =30cm = 45m
Lebar =
12cm = x m?
12/30 = x / 45
x = 12 × 45 / 30
x = 18
Matematika SMP Kelas VII
lebar model / lebar sebenarnya = tinggi model / tinggi sebenarnya
12 cm / lebar sebenarnya = 30 cm / 45 m
lebar sebenarnya = 12 x 45 / 30
lebar sebenarnya = 18 m