Question

classify each figure as a line, ray, or line segment. then, show how to write it.
figure\ttype\thow to write it
(a) d c\tline
\tray
\tline segment
(b) e f\tline
\tray
\tline segment
(c) a b\tline
\tray
\tline segment

Explanation:

Step1: Identify figure (a)

It has two endpoints D and C. So it is a line - segment.

Step2: Write figure (a)

It is written as $\overline{DC}$.

Step3: Identify figure (b)

It extends infinitely in both directions. So it is a line.

Step4: Write figure (b)

It is written as $\overleftrightarrow{EF}$.

Step5: Identify figure (c)

It has one endpoint A and extends infinitely in one direction. So it is a ray.

Step6: Write figure (c)

It is written as $\overrightarrow{AB}$.

Answer:

(a) Type: line segment; How to write it: $\overline{DC}$
(b) Type: line; How to write it: $\overleftrightarrow{EF}$
(c) Type: ray; How to write it: $\overrightarrow{AB}$