Assertion: star polygon | /r/HasProperty | studied by poinsot
Facets:
value: in the same paper
type: TEMPORAL
Source sentences:
text: The measure of any interior angle of a convex regular n -gon is ( 1 − 2 n ) π {\displaystyle \left(1-{\tfrac {2}{n}}\right)\pi } 180 − 360 n {\displaystyle 180-{\tfrac {360}{n}}} star polygons were first studied by Poinsot, in the same paper in which he describes the four regular star polyhedra: for a regular p q {\displaystyle {\tfrac {p}{q}}}
text: star polygons were first studied by Poinsot, in the same paper in which he describes the four regular star polyhedra: for a regular -gon with central density ), each interior angle is Exterior angle