Assertion: sphere's volume | /r/HasProperty | δv
Facets:
Source sentences:
text: At any given x, the incremental volume (δV) equals the product of the cross-sectional area of the disk at x and its thickness (δx):
text: At any given radius r,[note 1] the incremental volume (δV) equals the product of the surface area at radius r (A(r)) and the thickness of a shell (δr):