A heptahedron
Wiki User
∙ 2011-02-14 21:00:07A heptagon.
A 3 sided shape is a triangle. A 4 sided shape could be a square or rectangle.
A 3-sided shape is called a triangle.or Polygon in general.
A triangle
it is called a triangle
A seven sided shape is a heptagon.
a polyhedron (if the shape is 3 dimensional) a polygon if it is a planar shape.
Octahedron
A heptagon.
Typically this is called a triangle. :)
Hendecahedron
Its called a pentahedron. Its a five sided or faceted polygon.