It'd be a very similar truffle shape where on the outside it looks like a truffle, on the outside it looks like something like a truffle, and on the inside we have carved out a cone. Obviously this visualization is very specific to the way I've drawn these functions, but what we wanna do is generalize at least the mathematics of it. So how do we find a volume? Well, we could think of disks, but instead of thinking of disks, we're gonna think about washers now, which is essentially the exact same thing we did in the last video mathematically, but it's a slightly different way of conceptualizing it. So imagine taking a little chunk between these two functions just like that. What is going to be the width of this chunk? Well, it's going to be equal to dx, and let's rotate that whole thing around the x-axis.