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l=3
t=2
v=1536
jawab:
2(pl+pt+lt)
2(12+8+6)
= 52
1536/52= 29,5
dit : luas permukaan ?
penye:
4y x 3y x 2y = 1536
=1536
y^3= 64
y = 4
maka: panjang = 4 x 4=16 cm
lebar = 3 x 4 = 12cm
tinggi=2 x 4= 8
luasnya= 2(16 x12 + 16 x 8 + 12 x 8)
= 2(192 + 128 + 96) = 2 x 416 = 832 cm^2