Linked from
The 10 pages that link to Convex polygon, each with the reason it gives.
PolygonBroader topic: Convexity distinguishes polygons without inward dents from concave ones.
Pitot theoremRelated: The standard tangential-quadrilateral setting is convex.
DecagonRelated: Convexity distinguishes outward-bulging decagons from shapes with indentations.
Erdős–Nagy theoremBroader topic: The finite reflection process ends when no pockets remain.
Marjorie RiceNarrower topic: Rice searched within the convex polygons that can tile the plane.