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= × 100 × 12
= 100 × 4
= 400 cm³
La = 100 cm²
t = 12 cm
V = 1/3 × La × t
= 1/3 × 100 cm² × 12 cm
= 100 cm² × 4 cm
= 400 cm³
Jadi volume limas adalah 400 cm³
Nomor 2 ~>
a = b = s
c = diagonal sisi
= √50
a² + b² = c²
s² + s² = 50
2s² = 50
s² = 25
√s² = √25
s = 5
L = 6 × s²
= 6 × 5²
= 6 × 25
= 150 cm²
Jadi luas kubus adalah 150 cm²