Assertion: polygon's angle | /r/HasProperty | 120 degrees
Facets:
value: since 30 times
type: TEMPORAL
Source sentences:
text: All internal angles are 120 degrees.
text: Among constant-width shapes with a given width, the Reuleaux triangle has the minimum area and the sharpest (smallest) possible angle (120°) at its corners.
text: Since 30 times 4 = 120, the biggest angle is 120 degrees.