Odpowiedzi

2009-12-14T22:10:18+01:00
2a²+4ah=312
4ah=240

2a²=72
a²=36
a=6

h=10

V=a²*h=360
2009-12-14T22:26:05+01:00
Pp=2a²+4ah
Pp=312
Pb= 4ah
Pb=240
2a²=72/÷2
a²=36
a=6
h=10
V=a²×h
V=6²×10
V=36×10
V=360