A horizontal line is a straight line that runs from left to right.

A to B (Also written as AB)
C to D (Also written as CD)

AB
CD
FG
HJ
Practice Question 1
Can you identify the horizontal line in the shape below:
Answer:
The horizontal lines are:A to B (Also written as AB)
C to D (Also written as CD)
Practice Question 2
Can you identify the horizontal line in the complex shape below:
Answer:
The horizontal lines are:AB
CD
FG
HJ