dua balok berukuran 16 cm * 10 cm * 6 cm dan 10 cm * 6 cm * 2 cm Tentukan perbandingan jumlah panjang rusuk-rusuknya
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Jumlah panjang rusuk
4 ( p + l + t )
Perbandingan jumlah panjang
4(16+10+6) : 4(10+6+2)
32:18
16:9
4(16 + 10 + 6) : 4(10 + 6 + 2)
= 4(16 + 16) : 4(10 + 8)
= 4(32) : 4(18)
= 128 : 72
= (128/8) : (72/8)
= 16 : 9