A 12-sided shape is called a dodecagon.
A 14-sided and 3-dimensional shape is called either a tetrakaidecahedron or tetradecahedron. This 14-sided polyhedron can have six quadrilateral and eight hexagonal faces.
Parallelogram
Icosahedron
an angle
A 14 sided shape is called a Tetradecagon.
Most scientist call a shape with 14 sides a "14-gon" You can also use tetradecagon
you call a seven sided shape a heptagon.
An 11 sided shape is an Eptogon
A fourteen-sided regular polygon is called a tetradecagon or a tetrakaidecagon.
A 12-sided shape is called a dodecagon.
A 30 sided shape is called a Triacontagon.
A 14-sided and 3-dimensional shape is called either a tetrakaidecahedron or tetradecahedron. This 14-sided polyhedron can have six quadrilateral and eight hexagonal faces.
A 14 sided polygon is called a tetrakaidecagon.
A nine sided shape or polygon is called a nonagon.
A seven sided shape is called a heptagon.
I don't believe there is a name for the first one, but a 14-sided shape is called a tetradecagon.