Yes.
A seven sided shape is called a heptagon or a septagon.......
A regular heptagon.
A heptagon or a septagon. Equal-sided shapes are called "regular" so a seven equal sides shape is a regular heptagon.square square
A circle is non-polygon. Meaning it has a curved side. A circle has no sides. It is non-regular.
Seven
All seven sided polygons are known as "heptagons". Heptagons that have all side lengths the same are known as "regular heptagons".
A shape with seven sides is called a heptagon. Heptagons can be regular, with all sides and angles equal, or irregular, with varying side lengths and angles. The sum of the interior angles of a heptagon is 900 degrees.
That's a septagon.
A semi-circle is actually a specific type of shape known as a "regular" shape. A regular shape is one that has all sides and angles equal. In the case of a semi-circle, it has a curved side and a straight side, but the curved side is a perfectly round half-circle, making it a regular shape. Irregular shapes, on the other hand, do not have sides or angles that are equal.
That's a Heptagon or a septagon
A regular heptagon is a polygon with seven equilateral sides. The shape must also be equiangular and convex.
A sectagon is not a shape. I think you mean SEPTagon, which is a seven-sided polygon. It may or may not be regular. A regular polygon has all sides congruent and all angles congruent.