Assertion: parallelogram's angle | /r/CapableOf | add up to 720°
Facets:
value: for a complex quadrilateral
type: OTHER
value: in a crossed quadrilateral
type: LOCATION
Source sentences:
text: In a crossed quadrilateral, the four "interior" angles on either side of the crossing (two acute and two reflex, all on the left or all on the right as the figure is traced out) add up to 720°.
text: For a complex quadrilateral, interior angles add to 720° because two of the interior angles are reflex angles, each greater than 180° but less than 360°
text: Interior angles of all complex quadrilaterals add up to 720°