the orogin
There is no special angle and so it does not have a specific name.
An angle is formed where two lines meet. Parallel lines do not meet. Therefore they do not form an angle. So there is no angle to have a name. So no name.
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
A right angle.
Vertex.
There is no special angle and so it does not have a specific name.
The edges of facets -- where facets meet would be called by a geometric name: angle. You can read more about the names of cuts and their component faces/ facets, below.
Right angle.
Acute angle
An angle is formed where two lines meet. Parallel lines do not meet. Therefore they do not form an angle. So there is no angle to have a name. So no name.
A vertex is the name of a corner on a solid where three or more faces meet (plural = vertices).
The corner on a shape where edges meet is called a vertex.
A right angle.
Vertex.
a vortex
That would be a Complementary Angle.
The name of an angle that measures exactly 90 degrees is called a right angle. In geometry, a right angle is formed when two lines or line segments meet at a 90-degree angle, creating a perfect L-shape. Right angles are commonly seen in shapes such as squares, rectangles, and other geometric figures. The symbol for a right angle is a small square placed in the corner where the angle is formed.