Yes, but there is not way to draw one here. So please see the links below for some nice pics of them.
A [concave] pentagon.
Concave pentagon, an irregular pentagon.
It can be either.
A five sided pentagon has 5 diagonals
No, a concave equilateral pentagon is not possible. In a concave polygon, at least one interior angle must be greater than 180 degrees, which would make it impossible for all sides to be of equal length while maintaining the necessary geometric properties of a pentagon. Thus, an equilateral pentagon must be convex.
An underlined M is a concave pentagon. M (See link below)
No.
A [concave] pentagon.
Concave pentagon, an irregular pentagon.
Concave pentagon.
It can be either.
A concave pentagon.
Concave pentagon.
A five sided pentagon has 5 diagonals
The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).The answer depends on the shapes. Some possible answers are: parallelogram, trapezium, pentagon, heptagon (concave).
pentagon
A regular pentagon is convex, where all its interior angles are less than 180 degrees. However, an irregular pentagon can be concave if at least one of its interior angles is greater than 180 degrees.