Assertion: icosahedron's angle | /r/HasProperty | 9 0 ∘
Facets:
value: for m
type: TRANSITIVE-OBJECT
Source sentences:
text: For m = 4 m=4 m=4 (square faces), since the interior angle of a square is 9 0 ∘ , 90^{\circ}, 90∘, there can only be n = 3 n=3 n=3.