Odpowiedzi

2011-08-03T08:37:08+02:00

a=4cm

P=a²√3

P=(4cm)²√3

P=16√3cm²

 

V= V=\frac{a^{3}\sqrt{2}}{12} \\ V=\frac{(4cm)^{3}\sqrt{2}}{12} \\ V=\frac{64cm^{2}\sqrt{2}}{12} \\ V=5\frac{1}{3}\sqrt{2} cm^{2}