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= p×l
= 7cm × 4cm
= 28cm²
Luas persegi panjang sebenarnya :
= 28m²
= 280.000cm²
Skala
= jp : js
= 28cm² : 280.000cm²
= 1 : 10.000
Maka skala yang digunakan adalah 1:10.000
#Semoga membantu ^_^