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d=4√3
a=4
V=a³
V=4³
V=64 (j)³
Pc=2Pp+Pb
Pp=a²
Pp=4²
Pp=16
Pb=4×a²
Pb=4×4²
Pb=4×16
Pb=64
Pc=2Pp+Pb
Pc=2×16+64
Pc=96 (j)²