P trójkąta równobocznego = [tex]\frac{a^{2} \sqrt{3}}{4}[/tex] =
= [tex]\frac{4^{2} \sqrt{3}}{4}[/tex] = [tex]\frac{16 \sqrt{3}}{4}[/tex] = [tex]4\sqrt{3}[/tex]
V = 1/3 Pp * h = 1/3 * [tex]4\sqrt{3}[/tex] * 5 = 1/3 * [tex]20\sqrt{3}[/tex]
V = [tex]\frac{1}{3} * 20\sqrt{3}[/tex]
Pozdrawiam.
