Assertion: rhombus's diagonal | /r/HasProperty | perpendicualr
Facets:
value: to each other
type: TRANSITIVE-OBJECT
Source sentences:
text: Um, I noticed that this page has a proof for the fact that the diagonals of a rhombus are perpendicualr to each other, but what about the fact that the diagonals of a rhombus also bisect the angles of the rhombus as well?