A pentagon is a plane area which is enclosed by five straight lines. It is, therefore, a polygon. The sum of the five interior angles of a pentagon sum to 540 degrees and so, each interior angle of a regular pentagon measures 108 degrees. A pentagon has five diagonals. It can have none of five axes of symmetry.
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Six. One pentagon and five triangles.Six. One pentagon and five triangles.Six. One pentagon and five triangles.Six. One pentagon and five triangles.
A concave pentagon.
Concave pentagon.
A convex pentagon is one in which none of the interior angles are reflex.
If the pentagon is indeed equiangular, it would also be equilateral. You can't have one without the other in this specific case of the pentagon.