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l = 9 cm
a = p
= 12 cm
b = l
= 9 cm
a² + b² = c²
12² + 9² = c²
144 + 81 = c²
225 = c²
√225 = √c²
15 = c
b = 15 cm
c = 17 cm
a² + b² = c²
a² = c² - b²
a² = 17² - 15²
a² = 289 - 225
a² = 64
√a² = √64
a = 8
t = a
= 8 cm
V = p × l × t
= 12 cm × 9 cm × 8 cm
= 864 cm³
Jadi volumenya adalah 864 cm³