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V=h*Pp
Pp=(a*a pwk 3)/4
x -odleglosc wysokosci od wierzcholkow na tej scianie
x=(a pwk 3)/2*2/3=(a pwk 3)/3
h=pwk(a*a-x*x)=pwk(a*a-a*a*3/9)=pwk(a*a*2/3)=a pwk(2/3)=a/3 pwk 6
V=(1/3)*(a/3)*pwk 6 * a*a*pwk 3 /4=(a/12) pwk 2
(a/12)pwk 2=8 pwk 3
a pwk 2=96 pwk 3
2a =96 pwk 6
a=48 pwk 6
h=(a/3) pwk 6=(48 (pwk 6)/3)*pwk 6=16*6=96