Assertion: regular polygon's angle | /r/CapableOf | add up to 540°
Facets:
value: always
type: TEMPORAL
value: no matter
type: OTHER
Source sentences:
text: For example the interior angles of a pentagon always add up to 540° no matter if it regular or irregular, convex or concave, or what size and shape it is.
text: So for example the interior angles of a pentagon always add up to 540°, so in a regular pentagon (5 sides), each one is one fifth of that, or 108°.