Odpowiedzi

2010-03-28T17:55:57+02:00
L = 2π*r
L = 4π
r = 2
h = r
h = a√3/2
2 = a√3/2
4 = a√3
a = 4√3/3
P = 6* Pt
Pt = a²√3/4
P = 6* a²√3/4
P = 6* 16√3/12
P = 6* 4√3/3
P = 8√3
2010-03-28T18:00:44+02:00
4π=πr²
4=r²
r=√4
r=2
r=a
P= 6* a²√3/4
P = 6*4√3/4
P=24√3/4
P=12√3