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ukran balok = 16 x 8 x 10
panjang kawat = 7 m = 700 cm
maka :
Rangka = 4 x (p+l+t)
= 4 x (16+8+10)
= 4 x 34
= 136 cm
jadi jumlah yang dapat dibuat = 700/136 = 5 buah
dan tersisa kawat sepanjang = 700 - (136x5) = 20 cm