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= 10 cm : 2
= 5 cm
b = d₂ : 2
= 24 cm : 2
= 12 cm
a² + b² = c²
5² + 12² = c²
25 + 144 = c²
169 = c²
√169 = √c²
13 = c
s = c
= 13 cm
K = 4 × s
= 4 × 13 cm
= 52 cm
Rusuk = 2(Ka) + Jumlah seluruh panjang rusuk tegak
= 2(52) + (4 × 14)
= 104 + 56
= 160 cm
Jadi panjang rusuk prisma adalah 160 cm (B).