Jawabanmu

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2014-05-12T21:43:47+07:00
Jadi satu sisi = 40÷4 =10
1/2 d1 = 100 - 64 = 36
akar 36=6
jadi d1 =12
1/2 .12.16.8 = 768 cm3
1 5 1
2014-05-12T21:46:58+07:00
K = 4.s
40 = 4.s
s = 10 cm

Mencari satu diagonal : 10² - 8² = √36 = 6 cm

Luas alas = 12 cm x 16 cm = 192 cm²

Volume = Lalas x t = 192 x 8 = 1536 cm^3