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Pb=6*9=54cm
Pc=2*18+54=90cm
V=9*6*3=162cm
b) Pp=6*6=36dm
Pb=6*4,2=52,2dm
Pc=2*36+25,2=151,2dm
c) Pp=2*0,4=0,8m
Pb=28*2=56m
Pc=2*0,8+56=57,6m
V=0,8*28=22,4m
P=2x18+2x27+2x54
P=36+54+108
P=198cm²
V=6x3x9
V=162cm³
b)2x6x6+2x6x4,2+2x6x4,2
P=2x36+2x24+2x8,4
P=72+72+16,8
P=160,8
V=6x6x4,2
V=151,2
c) P=2x2x0,4+2x0,4x28+2x2x28
P=2x0,8+2x112+2x56
P=1.6+224+112
P=337,6
V=2x0,4x28
V=22,4