Assertion: regular decagon | /r/HasProperty | polygon
Facets:
value: with all ten sides
type: OTHER
Source sentences:
text: A regular decagon is a polygon that has ten equal sides and ten equal angles of 144°.
text: • √(5+2√5) • s2), computes the area of a regular decagon, a polygon with 10 equal sides of length (s).
text: A regular decagon is a polygon with all ten sides equal in length and each of the ten interior angles equal in degree; each angle of a regular decagon measures 144 degrees and the sum of the angles is 1440 degree.