Concave means bending inward, convex means bending outward.
Concave . . .
- thinnest in the middle
- thickest around the edge
- holds water
Convex . . .
- thinnest around the edge
- thickest in the middle
- water runs off
Chat with our AI personalities
Any polygon that has an angle that is > 180º is a concave polygon. A convex polygon does not. e.g. All regular polygons are convex.
A non convex is a concave and a convex is differently shaped
concave
A trapezoid is convex.
convex