So this is y is equal to f of x. And then I have another function that y is equal to g of x. So let's say it looks something like this. So y, the blue one right over here is y is equal to g of x. And like we did in the last video, I wanna think about the volume of the solid of revolution we will get if we essentially rotate the area between these two, and if we were to rotate it around the x-axis. So we're saying in very general terms, this could be anything, but in the way we've drawn it now, it would literally be that same truffle shape. 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.