nonagons
Nine-sided closed figures
A nonagon is a polygon with nine sides and nine angles.
The term comes from Latin, combining "nonus" (ninth) with the Greek suffix "-gon" (angle).
Regular nonagons have all sides and angles equal, though the shape appears rarely in everyday life compared to triangles, squares, or hexagons.
The stop sign's octagonal cousin, the nonagon, shows up occasionally in architectural designs.
Corner points of shapes
- anglesRotation between intersecting lines
- interiorInside area or region
- regularOccurring at fixed intervals
- irregularDeviating from normal patterns
equilateral · convex · concave · perimeter · area · diagonals · symmetry · tessellation
vertices
Corner points of shapes
- anglesRotation between intersecting lines
- interiorInside area or region
- regularOccurring at fixed intervals
irregular · equilateral · convex · concave · perimeter · area · diagonals · symmetry · tessellation · sides
numerology
Mystical significance of digits
- nineEight plus one
- Baha'iPersian-founded religion's adherent
- enneagramNine-pointed personality framework
mystical · spiritual · mandala · esoteric · completion · wholeness · religious · ritual · emblem · ceremonial
floor-plan
Overhead architectural diagram
rotunda · tower · dome · ceiling · tile · mosaic · fortress · bastion · decorative · ornamental