[tex]V = \frac{1}{3} \cdot P_{p} \cdot h~~wzor~~na~~objetosc~~ostroslupa\\\\gdzie~~P_{p} -pole~~postawy~~oraz~~h-wyskosc~~ostroslupa[/tex]
[tex]zad.a\\\\h=10~cm\\\\P_{p} =P_{rownolegloboku} = a\cdot h_{1} ~~gdzie~~a=9~cm~~h_{1}=2~cm\\\\P_{p} =9cm \cdot 2cm\\\\P_{p} =18~cm^{2} \\\\V=\frac{1}{3} \cdot 18~cm^{2} \cdot 10~cm\\\\V=60~cm^{3}[/tex]
[tex]zad.2\\\\h=9~dm\\\\P_{p} =P_{trapezu} =\frac{(a+b)}{2} \cdot h_{1} \\\\gdzie~~a=13~dm,~~b=7~dm,~~h_{1} =5~dm\\\\P_{p} =\frac{(13dm+7dm)}{2} \cdot 5~dm\\\\P_{p} =10~dm\cdot5~dm\\\\P_{p} =50~dm^{2} \\\\V=\frac{1}{3} \cdot 50~dm^{2} \cdot9~dm\\\\V=50~dm^{2} \cdot 3~dm\\\\V=150~dm^{3}[/tex]
[tex]zad.c\\\\h=11~m\\\\P_{p} =P_{rombu} =\frac{e \cdot f}{2} ~~gdzie~~e=6~m,~~f=4~m\\\\P_{p} =\frac{6m \cdot4m}{2} \\\\P_{p} =12~m^{2} \\\\V=\frac{1}{3} \cdot 12~m^{2} \cdot 11~m\\\\V=44~m^{3}[/tex]
