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= 4(10) = 40 cm
Banyak kerangka balok = 400:40 = 10 buah
Jadikan terbaik ya !
krangka = 4 ( p + l + t)
= 4 ( 5 + 4 + 1)
= 4 ( 10)
= 40 cm
banyak krangka yg di buat
banyak = 4 (100) : 40
= 400 : 40
= 10
jawabnnya 10 buah