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Pp=6a²√3/4=6*8²√3/4=96√3
Pc=2Pp+Pb
240√3=2*96√3+Pb
Pb=240√3-192√3
Pb=48√3
pole 1 sciany=48√3;6=8√3
H=wysokosc bryły
8√3=aH
8√3=8H
H=√3
d=przekatna sciany
z pitagorasa;
d=√[H²+a²]=√[√3²+8²]=√67