Assertion: parallelogram's height | /r/HasProperty | measured perpendicular
Facets:
value: to the base
type: LOCATION
Source sentences:
text: (As before, "height" is measured perpendicular to the base, and "base" is whichever side you chose first.
text: The area of a parallelogram is the base times the height; the height must be measured perpendicular to the base.