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No. There can be no regular concave polygon.

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Q: A square is an example of a quadrilateral that is both a regular concave polygon and a regular convex polygon?
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Related questions

Can a concave quadrilateral be a regular polygon?


Why can't a concave quadrilateral be regular?

By definition, a regular polygon has all interior angles the same, but a concave polygon has some interior angles that are not identical. Also, it violates the axiom that all vertices lie on a circle.While it is possible to construct a polygon with equilateral sides, to be concave would require a form that is equally convex and laterally opposite. (An example is a 'solid arrow shape.')

Is every quadrilateral a regular polygon?

No not every quadrilateral can be a regular polygon.

What is defined to be a quadrilateral in which both pairs of opposite sides are parallel a regular polygon b concave polygon c parallelagram d octagon?

Dragon is the answer

Is a concave polygon a regular polygon?

No, a concave polygon cannot be a regular polygon.

Can a concave quadrilateral be regular?


What type of quadrilateral can not be a regular polygon?

which type of quadrilateral is never a regular polygon

What is an example of a trapezoid?

A trapezoid is an example of a regular polygon or a geometrical shape. It is also an example of a quadrilateral.

Why must concave quadrilaterals be irregular?

A regular polygon has all its angles of equal measure, and its sides of equal length. In the case of a quadrilateral, that would mean a square. A concave quadrilateral must have at least one reflex angle and so cannot be a square. So it cannot be regular.

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.

Can a concave qudrilateral be a regular polygon?


Is a concave shape a regular polygon?