I think it is niether
* * * * *
A heptagon is simply a plane shape bounded by seven straight sides. Any polygon with three of more sides can be concave or convex.
Chat with our AI personalities
If it were a perfect heptagon then it would be convex. If it had any indentations then it would be concave.
No, a heptagon cannot be parallel but two heptagons can.A heptagon can be concave.
concave
A trapezoid is convex.
convex