Assertion: triangle's side length | /r/HasProperty | integer
Facets:
Source sentences:
text: In geometry, a Heronian triangle is a triangle that has side lengths and area that are all integers.
text: Any right-angled triangle whose sidelengths are a Pythagorean triple is a Heronian triangle, as the side lengths of such a triangle are integers, and its area is also an integer, being half of the product of the two shorter sides of the triangle, at least one of which must be even.