ray
It has two endpoints. A ray has one endpoint.
diameter
A ray = A half-line
a ray
A line segment is a portion of a line. It has length. It has two endpoints. A ray has only one endpoint. It has infinite length in one direction.
I am going to say a line segment. No segments is a line, and one endpoint is a ray.
A two-dimensional figure that has one endpoint is a ray. A ray starts at a single point, called the endpoint, and extends infinitely in one direction. It is defined by its endpoint and another point that indicates the direction.
A ray is a geometric figure that starts at a specific point, called the endpoint, and extends infinitely in one direction. It is typically represented by a straight line with an arrowhead indicating the direction of extension. In mathematical notation, a ray can be expressed as ( \overrightarrow{AB} ), where point A is the endpoint and point B indicates the direction. Rays are fundamental in geometry and are used to define angles and other geometric concepts.
A figure consisting of two non-collinear rays with a common endpoint is known as an angle. The common endpoint is called the vertex, while the two rays are referred to as the sides of the angle. Angles are measured in degrees or radians, indicating the amount of rotation from one ray to the other. This geometric concept is fundamental in various fields, including mathematics, physics, and engineering.
Only one point. A dimensionless figure.
A cone
on any ray,there is exactly one point at a given distance from the endpoint of the ray
parallelogram
if you are talking about a geometric figure its the octagon
A rectangle.
a cone
None. Degrees are a measurement of angle.