Post #2712462

@sibrosan@mastodon.social @divbyzero@mathstodon.xyz The precise formula here is actually not important. The important observation is that this volume depends only on the *area* of P. It depends neither on the shape of P nor on its position on the outer sphere. So if you do steps 1 to 4 for two slices P and P' of the outer sphere with the same area, the resulting "rings" will have the same volume. So, does this convince you?