Question

What is a concave polygon?

Answer 1

A concave polygon is a polygon that is not convex. A simple polygon is concave iff at least one of its internal angles is greater than . An example of a non-simple (self-intersecting) polygon is a star polygon. Aconcave polygon must have at least four sides.

Answer 2

A concave polygon is a polygon that is not convex. A simple polygon is concave if at least one of its internal angles is greater than. An example of a non-simple (self-intersecting) polygon is a star polygon. A concave polygon must have at least four sides.
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