Answer: 4.6 cm
Step-by-step explanation:
Given
Volume of water [tex]V=1\ L\ \text{or}\ 1000\ cm^3[/tex]
The height of the water is [tex]h=15\ cm[/tex]
The volume of the cylinder is [tex]\pi r^2h[/tex]
Insert the values
[tex]\Rightarrow 1000=\pi (r^2)15\\\\\Rightarrow r^2=\dfrac{1000}{3.142\times 15}\\\\\Rightarrow r^2=\dfrac{1000}{47.13}\\\\\Rightarrow r^2=21.217\\\Rightarrow r=4.6\ cm[/tex]
