A quadrilateral
In 2-dimension it is an 'HEXAGON' In 3 dimension is is am HEXAHEDRON.
Parallelogram
an angle
a semi-circle
a digon ']* * * * *There cannot be such a shape.
a heptigon
depth
10 sided 2D shape is called a decagon 20 sided 2D shape is called a icosagon 30 sided 2D shape is a swimming pool 40 sided 2D shape is unknown 50 sided 2D shape is unknown 60 sided 2d shape is unknown 70 sided 2d shape is unknown 80 sided 2d shape is unknown 90 sided 2d shape is unknown 100 sided 2d shape is unknown 110 sided 2d shape is unknown 111 sided 2d shape is unknown 120 sided 2d shape is unknown 130 sided 2d shape is unknown
triangle isosceles triangle
'Object' Do you mean 'shape' or 'solid'. a 2-dimensional shape is an hexagon a 3-dimensional solid is a hexahedron.
You'd probably call a 2-d figure like this a "108-gon"
Septagon or Heptagon = seven sided shape