Assertion: triangle's circumradius | /r/CapableOf | equal one-fourth
Facets:
value: for a general triangle
type: OTHER
Source sentences:
text: Every Heronian triangle has a rational circumradius (the radius of its circumscribed circle): For a general triangle the circumradius equals one-fourth the product of the sides divided by the area; in a Heronian triangle the sides and area are integers.