Assertion: circle's center | /r/CapableOf | lie on the line
Facets:
Source sentences:
text: Furthermore the cyclic quadrilateral formed from the four nine-pont centers is homothetic to the reference cyclic quadrilateral ABCD by a factor of −1/ 2 and its homothetic center (N) lies on the line connecting the circumcenter (O) to the anticenter (M) where