Odpowiedzi

2010-04-05T12:14:40+02:00
Pp = 2 *3dm * 3dm = 18dm3
Pb = 4*3dm * 3dm = 36dm3
Pc= 6 * (3dm)2 = 6* 9dm2 = 54 dm2
2010-04-05T12:16:06+02:00
P = a²√3 / 4
P = 3²√3 / 4
P = 9√3 / 4

Pb = 27√3 / 4
Pc = 36 √3 /4
Pc = 9√3