Two holding tanks are congruent in size, and both are in the shape of a cylinder that has been cut in half vertically. The bottom of the tank is a curved surface. What is the volume of both tanks if the radius of tank #1 is 10 feet and the height of tank #2 is 125 feet?

I really just need to know if the bottom of the tank being curved is going to affect the problem. I assume that I would do V= 3.14(10)² 125 to find the volume of a cylinder and divide it by 2 to find the volume of a half-cylinder. BUT, do I have to do anything about the curved bottom??? Thank you!