it is an oblique straight oval.
That would be an inverted cone...
A pentagon
y78t6
Each side is called a face.
The vertex of an angle
The name of an eleven sided geometric shape is a Hendecagon or endecagon.
Its the name for a shape
sphere
A heptagon.
There is no name but a cylinder is the nearest standard geometric shape.
I believe it is Rhombus
That would be an inverted cone...
metallic
Fractal,
rectangle
An ellipse? The shape described is not an exactly describable geometric shape, (), and as far as I know there is no name for it.
A pentagon