Assertion: heron | /r/HasProperty | compendium
Facets:
value: of geometric rules
type: OTHER
value: of formulas
type: OTHER
value: in three books
type: OTHER
Source sentences:
text: It is a compendium, in three books, of geometric rules and formulas that Heron gathered from a variety of sources, some of them going back to ancient Babylon, on areas and volumes of plane and solid figures.