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a=d/√2 =d√2/2
a=6√2/2 =3√2
H=a =3√2
r=a/2 =3√3/2
V=Pp*H=πr²*H
V=(3√3/2)² *3√2 =9*3/4 *3√2 =81√2/4 [j³]
Promień podstawy walca
Wysokość h walca