The word concave is derived from the Latin word concavus, from cavus, meaning cave.
The Hindi word for concave is "अवतल" (avatal).
because it has increasing opportunity costs
The Law of Increasing Opportunity Cost that is shown in a Production Possibilities Curve is concave to the origin. This is because it shows the maximum gain of two products used in production.
Convex
because the point of origin would be on an outer point and around it the walls seem to cave in making it seem concave, in comparison to a regular polygon. When checking for concave polygons always compare what you are looking at to a regular polygon
shield
Conclave or concave?
convex lens
I remember this answer by remembering the word 'cave' as in 'concave'. The answer is Concave.
the origin is where the word came from but the specific origin of the word ballot is latin root word.
The word "origin" is derived from the French word "origin" and the Latin word "originem," both of which mean, beginning, descent, birth, and rise.
concave lens :P