Jawabanmu

Jawaban paling cerdas!
2014-04-08T13:53:50+07:00
d2 = p2 + l2 + t2
289= 144 + 81 + t2
t2 = 289 – 225

t= akar 64
t= 8 cm 
 V= P X L X T = 12 X 9 X 8 = 864 cm3

semoga membantu :)

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