Answer:
The polygon is a concave polygon
The polygon is irregular polygon
Explanation:
Convex polygon is polygon that has all interior angles less than 180°
In a convex polygon, every diagonal of the figure passes only through interior points of the polygon
A line drawn through a convex polygon will intersect the polygon in exactly two points
Some of convex polygons can be regular polygons
Concave polygon is a polygon that has one or more interior angles greater than 180°
In a concave polygon, at least one diagonal of the figure contains points that are exterior to the polygon
A line drawn through a concave polygon, can intersect the polygon in more than two points
Concave polygon never be a regular polygon
From the attached figure
∵ The polygon has one diagonal lies out the interior of the polygon
∴ The polygon is a concave polygon
∵ All the concave polygons are regular polygons
∴ The polygon is irregular polygon