[tex]graniastoslup:\\\\podstawa\ kwadrat\\przekatna:\ d=2\ dm=20\ cm\\wysokosc\ graniastoslupa:\ H=65\ cm\\\\wzor\ na\ przekatna\ kwadratu:\\\\d=a\sqrt{2}\\\\a\sqrt{2}=20\ \ |:\sqrt{2}\\\\a=\frac{20}{\sqrt{2}}*\frac{\sqrt{2}}{\sqrt{2}}=\frac{20\sqrt{2}}{2}=10\sqrt{2}\ cm[/tex]
[tex]objetosc\ graniastoslupa:\\\\V=P_{p}*H\\\\pole\ podstawy:\\\\P_{p}=a^2\\\\P_{p}=(10\sqrt{2})^2=100*2=200\ cm^2\\\\V=200*65=13000\ cm^2=1,3\ m^2[/tex]
