Question

Which of the following are models for perpendicular lines:

1. The adjacent edges of a table top.
2. The lines of a railway track.
3. The line segments forming the letter ’L’
4. The letter V.

Answer 1

a. The adjacent edges of a table top.

c. The line segments forming the letter ’L’

Explanation:

Perpendicular lines intersect at a right angle (90 degrees). The adjacent edges of a tabletop and the segments forming the letter 'L' are examples of lines meeting at a 90-degree angle, indicating perpendicularity.