Question

Which of the following are one-dimensional and have infinite length?

Check all that apply.
A. Angle
B. Segment
C. Plane
D. Ray
E. Point
F. Line

Answer 1

A). No. Has no length at all.

B). No. One-dimensional, yes, but both ends are known, so length is known.

C). No. Infinite length, yes, but two-dimensional.

D). Yes. One-dimensional. One end is known, but the other end is infinite.

E). No. No dimensions, no length.

F). Yes.

Answer 2

Answer : Ray and Line

A) Angle ---> No, one dimension are measured in one direction. Has no length at all.

B). Segment ---> Segment is a line that has finite length. It is one dimensional but length is known.

C). Plane ----> Plane is a two-dimensional but it has infinite length.

D). Ray -----> Ray is One-dimensional. Ray starts at one point and it goes on infinitely. Ray has infinite length.

E). Point -----> Point has no dimension and no length

F) Line------> Line is one dimensional . It has infinite length.