panjang sebuah persegi panjang 18 cm, panjang : lebar = 3 : 2, hitunglah lebar persegi panjang!
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Jawaban:
12 cm
Penjelasan dengan langkah-langkah:
p:l = 3:2
p = 18
l = 2 × (18÷3)
l = 2 × 6
l = 12