Szczegółowe wyjaśnienie:
1.
[tex]Pc=Pp+Pb\\\\Pb = 4*\frac{a*h}{2}[/tex]
[tex]Pc=3,5*3,5 + 4*\frac{3,5*7}{2} =12,25+49=61,25cm^{2}[/tex]
2.
[tex]V=\frac{1}{3} *Pp*H[/tex]
[tex]Pp=4*8=32cm^{2}[/tex]
[tex]H=12cm\\\\V=\frac{1}{3} *36*12=36*4=144cm^{3}[/tex]
3.
[tex]Pc=Pp+Pb[/tex]
[tex]V=\frac{1}{3}*Pp*H[/tex]
[tex]Pp=6*6=36cm^{2}[/tex]
[tex]Pc=36cm^{2} +4*\frac{6*11}{2} =168cm^{2}[/tex]
[tex]V=\frac{1}{3} *36*23=276cm^{3}[/tex]
