Its internal angles total 1,260 degrees

• Shape of a Bahai temple
• Shape whose interior angles total 1,260 degrees
• It has nine angles and nine sides
• Nine-sided shape
• A regular one has internal angles of 140 degrees
• Many-sided figure
• Defective stop sign?
• News about Bosnia regularly ignored – go figure
• Figure a small number continue to badger

Wiktionary Word definitions in Wiktionary
n. (context geometry English) A polygon with nine sides and nine angles.