Strictly speaking, a "ray" is in the family of lines and line segments. A line is defined as a one-dimensional object of infinite length with no well-defined endpoints (since "infinity" isn't a well-defined value). It's the 1-D analogue to a plane or a space. A line segment is the finite equivalent of a line. A ray is a bit stranger: it's infinite in length, but has one well-defined end-point, where the ray originates. They show up a lot in classical optics because if nothing interrupts it, a light ray is created at some point and then continues forever.
By definition, yes. Any shape is a geometric shape.
The ray
A figure with 8 equal sides.
The intersection of two ideal lines
The answer is actually false Geometric shapes have definite shapes and the definition of amorphous is to be shapless
it is an angle
It is a ray [of coherent light], a physical term.
A sphere.
By definition, yes. Any shape is a geometric shape.
Ray
The ray
Geometric means (1) "relating to geometry" or (2) "having simple geometric forms such as circles and squares in design or decoration."
A square is a regular quadrilateral.
A plane is a flat surface
Acute < 90°
3 sided geometric figures
Since probability is not a geometric concept, there is no definition for it in geometry.