Answer:
r=2.82 cm
Step-by-step explanation:
Given:
Volume of the cylinder= [tex]225cm^3[/tex]
Height of the cylinder = [tex]9 cm[/tex]
Volume of the cylinder =[tex]\pi r^2h[/tex]
[tex]225=\pi *r^2*9\\\\\frac{225}{9\pi } =r^2\\\\\frac{225}{9*3.14}=r^2\\\\ \frac{225}{28.26} =r^2\\r^2=7.96\\r=\sqrt{7.96}\\\\r=2.82 cm[/tex]
The radius of the cylinder is 2.82 cm
