Heptagon.
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There are a few simple shapes with equal sides. The basic shapes are a square, octagon, and an equilateral triangle,
from there sides
There is no special name: they are polygons, as are shapes with 3 or 3 million sides.
Shapes having less than 4 sides or more than 4 sides are not parallelograms
All regular polygons with an even number of sides. Irregular polygons with an odd number of sides can have parallel sides. There are also non polygonal shapes that can have parallel sides.