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H²=8²-4²=64-16=48
H=√48=√4*4*3=4√3
Pb=2*8*8/2+2*12*8/2=64+96=160 (cm²)
Pc=Pp+Pb=96+160=256(cm²)
V=1/3*96*4√3=32*4√3=128√3 (cm³)
Ppc=4xaxh/2 + axb
Ppc=192cm2 + 96cm2
Ppc=288cm2
H(kwadrat)=8x8 - 4x4
H(kwadrat)=64-16
H(kwadrat)=48|pierwiastkowanie
H=(około)=7
V=1/3 Pp x H
V=1/3 96cm2 x 7cm
V=32cm2 x 7cm
V=224cm3