Question

a ___ is a portion of a line that starts at one point and extends forever in only one direction
line segment
dimension
ray
line

1. choose the correct answer.

the point at either end of a line segment or the point at the start of a ray is the ___
endpoint
ray
line
line segment

Explanation:

• First question:
• A line segment has two endpoints and is a finite part of a line.
• A dimension is a measure (like length, width, height).
• A ray has one endpoint and extends infinitely in one direction.
• A line extends infinitely in both directions.
• Second question:
• An endpoint is a point at the end of a line segment or the starting point of a ray.
• A ray is a part of a line (as explained above).
• A line has no endpoints (extends infinitely).
• A line segment has two endpoints (finite part of a line).

Answer:

1. C. ray
2. A. endpoint