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D=H√2 z zalezności boków w Δ 45 90 45
H=4√2/√2
H=4
d=H przekatna podstawy
d=4
V=Pp*H
Pp=d²/2
Pp=4²/2 =16/2 =8 [j²]
V=8*4
V=32[j³] objętośc