197.92 cm
Step-by-step explanation:
The formula to find volume for a cylinder is V=Ď€r^{2}h
The problem gave you the height (h): 7cm and the radius (r): 3cm and pi (Ď€) is a constant that will automatically insert when you use the "Ď€" button in a calculator
Now that you know that you have all your variables, you can now plug them into your formula.
V=Ď€3^{2}7
Next, solve the equation.
V=Ď€(9)(7)
V=Ď€(63)
V=197.92cm
Hope this helped! :)