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volume = p x l x t
48a³=6a x 4a x t
48a³=24a² x t
t=2a
b.
L=2(pxl+lxt+pxt)
L= 2 (24a² + 8a² + 12a²)
L=2(44a²)
L=88a²
48a^3 = 6a x 4a x t
48a^3 = 24a^2 x t
t = 48a^3 : 24a^2 = 2a
b) L permukaan= 2(pl+pt+lt) = 2(6ax4a + 6ax2a + 4ax2a) = 2(24a² + 12a² + 8a²)
= 2(44a²) = 88a²