Question
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Which of the following are models for perpendicular lines?
A. The adjacent edges of the table top.
B. The lines of a railway track.
C. The line segment forming the letter “L”.
D. The letter V.

Answer
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Hint: The property of being perpendicular is the relationship between the two lines which meet at a right angle(90 degree). A line is said to be perpendicular to another line if the two lines intersect at right angles.

Complete step-by-step answer:
In the above question we will see all the option one by one as shown below,
A. The adjacent edges of the table top.
Here, we have a table top which is in a rectangular shape and we know that the adjacent edges of it
is at right angle.So, they are perpendicular.
Hence, option A. is correct.

B. The lines of a railway track.
Here, the railway track is at 180 degrees to each other which means they are parallel.
Hence, this option is not correct.

C. The line segment forming the letter “L”.
Here, the line segment of the letter “L” is at right angle. So, they are perpendicular.
Hence, option C. is the correct option.

D. The letter V.
Clearly, we can see that the line segment forms an acute angle which means they are not
perpendicular.
Hence, option D. is not correct.
Therefore, the correct options of the above question will be option A. and C.

NOTE: Just remember the condition for the two lines to be perpendicular.
A line is said to be perpendicular to another line if the two lines intersect at right angles.
Right angle means 90 degrees.