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V balok kecil = 20 × 15 × 5
= 1.500 cm³
V balok besar = 40 × 15 × 60
= 36.000 cm³
V total = V balok kecil + V balok besar
= 1.500 + 36.000
= 37.500 cm³
Jawabnnya B
28).
L permukaan kubus = 6s²
= 6 × 15²
= 6 × 225
= 1.350 cm³
Jawabnnya D
29). Limas segiempat. Jawabannya A
30). jawabannya B. D(6,3)