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luas karton = 3x2 = 6 m²
Rusuk= 0,5 m
Dit:
ukuran karton minimal untuk menutupi kekurangan ?
jawab:
luas permukaan 5 kubus:
5 x 6s²= 30 x 0,5²= 7,5 m²
kekurangan karton:
7,5 - 6 = 1,5 m²
ukuran karton minimal:
3mx0,5m