View Pentagon Shape Angles Pictures. You can tell, just by looking at the picture, that $$ \angle a and \angle b $$ are not congruent. An interior angle is an angle inside a shape.
Naming polygons tips and directions for naming polygons when you draw a line through a concave polygon it touches the concave polygon in more that two places,but with a convex polygon the line only touches it in two places 120° heptagon (or septagon) 7: In geometry, a polygon is traditionally a plane figure that is bounded by a finite chain of straight line segments closing in a loop to form a closed chain.
Polygons are classified mainly into four categories.
An exterior angle of a polygon is an angle outside the polygon formed by one of its sides and the extension of an adjacent side. This question cannot be answered because the shape is not a regular polygon. The segments of a polygonal circuit are called its edges or sides, and the points where two edges meet are. Drag vertices to create irregular polygons.