Question

What are convex and concave polygons

Answer 1

Convex ployvons:' A convex set is a subset of an affine space that is closed under convex combinations.
Concave Polygon:- A simple polygon that is not convex is called concave, non-convex or reentrant.

Answer 2

Answer:

Convex polygon

If all the angles of a polygon are less than 180° then it is called convex polygon.

Concave polygon

If any one of the angles of a polygon is more than 180° then it is called concave polygon.

Hope it helps!