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Terimakasi. Semoga membantu.
lebar sebenarnya = 12 m
lebar pada gambar = 4 cm
skala = 4cm /12 m = 4cm/ 1200 cm
= 1/300
= 1 : 300
panjang pada gambar = 15 m/300
= 1500/300
= 5 cm
luas pada gambar = p xl
= 5 cm x 4 cm
= 20 cm^2
luas sebenarnya = p x l
= 15 m x 12 m
= 180 m^2
perbandingan luas pada gambar dan luas sebenarnya =
= 20 cm^2 : 180 m^2
= 20 cm^2 : 1800000 cm^2
= 1 : 90000