volume of a cylinder with a 10 centimeter radius and a height of 6.5

The formula for the area of a circle is:

 

A = pi * r²

 

And to get the volume of a cylinder, simply multiply by the heigth:

 

V = pi * r²h

 

Thus:

 

V ≈ 3.14 * 10 cm * 10 cm * 6.5 cm = <your answer> cm³