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Not all polygons are concaves.
For it to be a concave, it must have an outline or surface pointing inwards, like a depression. The opposite is "convex." Most regular polygons are convex, while some will be concave.
Think about it this way: con = with (generally, and sometimes), cave = going inward, or bending inward, etc.
CONCAVE is the result of those two put together, so it must mean that one or more of its outlines or surfaces must be pointing inwards! :)
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∙ 12y ago
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Is a concave polygon a regular polygon?
No, a concave polygon cannot be a regular polygon.
A square is an example of a quadrilateral that is both a regular concave polygon and a regular convex polygon?
No. There can be no regular concave polygon.
What is the difference between a concave polygon and a convex polygon?
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.
What is a polygon with an inward vertex called?
A concave polygon.
What is a five sided concave polygon called?
A [concave] pentagon.
What is a nonconvex polygon?
A nonconvex polygon is a concave polygon. All polygons with 4 or more sides can be concave. An arrowhead is an example of a concave quadrilateral. The back of an envelop (where the sides are folded and glued together) is a concave pentagon.
A pool is in the shape of a polygon. The segments and vertices of the polygon are shown. Is this polygon convex or concave?
concave
What is a polygon that bends in?
It is a concave polygon. There are polygons of 4 or more sides that are concave.
A polygon that is not convex?
Is a concave polygon.
Is a concave polygon a regular polygon?
No, a concave polygon cannot be a regular polygon.
A square is an example of a quadrilateral that is both a regular concave polygon and a regular convex polygon?
No. There can be no regular concave polygon.
What is the difference between a concave polygon and a convex polygon?
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.
Is a noncovex polygon the same as concave polygon?
Yes.
What is a polygon with an inward vertex called?
A concave polygon.
What are the similarities between regular polygon and a concave polygon?
A regular polygon is a special kind of convex polygon - one in which all the sides are of the same length and all the angles are equal. Convex and concave polygons form disjoint sets: so no concave polygon can be regular.
What is a concave angle?
A concave angle is an angle, of a polygon that caves in.
What is a five sided concave polygon called?
A [concave] pentagon.
