tolong ya no. 2 , 3 , 4. makasihhh :)

2.
Lp = 6s²
384 = 6 s²
s² = 384 / 6
s² = 64
s = 8

V = s x s x s
V = 8 x 8 x 8
V = 512

3.
Lp = 2 (pl + pt + lt)
Lp = 2 (80.60 + 80.40 + 60.40)
Lp = 2 (4800 + 3200 + 2400)
Lp = 2 (10.400)
Lp = 20.800cm²

V = p x l x t
V = 80 x 60 x 40
V = 192.000cm^3


4.
V = p x l x t
480 = 10 x 8 x t
t = 480 / 80
t = 6

Lp = 2 (pl + pt + lt)
Lp = 2 (10.8 + 10.6 + 8.6)
Lp = 2 (80 + 60 + 48)
Lp = 2 (188)
Lp = 376