Zad 1
Pb + 2Pp = Pc
Pb = 4*3+4*4+4*5= 48cm²
Pp= 3*4*5:2=30cm²
Pc=2*30+48=108cm²
Zad 2
V=Pp*H
Pp=[tex]\frac{(3+7)*3,5}{2}[/tex]=35:2=17,5cm²
H=5cm
V=17,5*5=87,5cm³
Gr II
Zad 1
Pc=2Pp+Pb
Pp=a*h=4*2=8cm²
Pb=2*3*6+2*4*6=36+48=84cm²
Pc=16+84=100cm²
Zad 2
V=Pp*H
H=8cm
Pp=6*2:2=6cm²
V=6*8=48cm³
