Assertion: triangle's center | /r/CapableOf | form orthocentric system.:p
Facets:
Source sentences:
text: Because the internal bisector of an angle is perpendicular to its external bisector, it follows that the center of the incircle together with the three excircle centers form an orthocentric system.:p.
text: Because the internal bisector of an angle is perpendicular to its external bisector, it follows that the center of the incircle together with the three excircle centers form an orthocentric system.:p.