a)
30mm=3cm
V=Pp*H
V=2*4*3=24[cm³]
Pc=2*Pp+Pb
Pb=2*2*3+2*4*3=12+24=36[cm²]
Pp=4*2=8[cm²]
Pc=2*8+36=16+36=52[cm²]
b)
120mm=12cm
V=6*8/2 *12=24*12=288[cm³]
Pc=2*24+6*12+8*12+10*12=48+72+96+120=
=336[cm²]
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pc= pp+pb
pc=8+60
pc=68
V= pp•h
V=8•30
V= 240
a)
30mm=3cm
V=Pp*H
V=2*4*3=24[cm³]
Pc=2*Pp+Pb
Pb=2*2*3+2*4*3=12+24=36[cm²]
Pp=4*2=8[cm²]
Pc=2*8+36=16+36=52[cm²]
b)
120mm=12cm
V=Pp*H
V=6*8/2 *12=24*12=288[cm³]
Pc=2*Pp+Pb
Pc=2*24+6*12+8*12+10*12=48+72+96+120=
=336[cm²]