Answer:
≈5.15 [cm].
Step-by-step explanation (English version):
1) Capacity - V - 1000 cm³;
height - h - 12 cm;
radius - r - ?
2) the initial formula is:
V=π*r²*h, where π=3.1415;
then final formula of the required r is:
[tex]r=\sqrt{\frac{V}{\pi *h}};[/tex]
3) [tex]r=\sqrt{\frac{1000}{3.1415*12}} =\sqrt{26.5266} =5.15[cm].[/tex]
