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r=6cm=0.6dm
v=Рр*h
Рр=πr²
Pр=o,6²π=0,36π dm²
podstawiam do wzoru na objetość
0,36π=0,36π*h
dziele przez 0,36π
wiec,
h=1dm
πr = 6 / ÷π
r = 6/π
r = 1.91
0,36π = π 1.91 × h /÷π
0.36 = 1,91 × h /÷ 1,91
36 / 191 = h