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pnjng kwat = 5 m = 500 cm
ukuran balok = 10 x 8 x 5 cm
akn dibuat 5 balok
maka :
Rangka = 4 x (10+8+5)
= 4 x 23
= 92 cm
Pnjang kawat untuk membuat 5 rangka = 92 x 5 = 460
Jdi sisa kawat = 500 - 460 = 40 cm
= 4 (p+l+t)
= 4 (10+8+5) cm
= 4 (23) cm
= 92 cm
Panjang 5 kerangka
= 5 * 92 cm
= 460 cm
Banyak kawat yang tersedia > 5 m = 500 cm
Sisa kawat
= Banyak kawat yang tersedia - panjang kawat 5 kerangka
= 500 cm - 460 cm
= 40 cm
Jadi sisa kawat adalah 40 cm