9 Angles 〈100% Validated〉

Thus, a regular 9-sided figure has 9 equal interior angles of 140°.

Most rooms are obedient; they adhere to the rigidity of four corners, or perhaps the gentle curve of an octagon. But The Nook was defiant. It was an irregular nonagon, a nine-sided polygon that seemed to shift shape depending on where you stood. 9 angles