Odpowiedź:
a = 2cm Pp = [tex]6*\frac{a^{2}\sqrt{3} }{4}[/tex] = [tex]6*\frac{2^{2}\sqrt{3} }{4}[/tex] = [tex]6*\frac{4\sqrt{3} }{4}[/tex] = [tex]6\sqrt{3}[/tex] [tex]cm^{2}[/tex]
H = 2cm * 6 = 12cm V = [tex]6\sqrt{3}[/tex] * 12 = [tex]72\sqrt{3}[/tex] [tex]cm^{3}[/tex]
V = Pp * H Pc = 2*Pp + Pb
Pb = 6*a*b b = H
Pb = 6*2*12 = 144[tex]cm^{2}[/tex] Pc = 2*[tex]6\sqrt{3}[/tex] + 144 = (12[tex]\sqrt{3}[/tex] + 144) [tex]cm^{2}[/tex]
Licze na naj :)
