The proper mathematical object is the complex projective space quotiented out by the group action of Z mod 2 i.e. CP^1/(Zmod2)=CP^1/(+-1)
Taking the Riemann Sphere, we identify antipodal points.
it is an oval
The name of an eleven sided geometric shape is a Hendecagon or endecagon.
Its the name for a shape
A heptagon.
metallic
it is an oval
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
The geometric shape of a tepee is a cone :)
A triangle is a geometric shape.
it is an oblique straight oval.