Which of the following are models for perpendicular lines: (a) The adjacent edges of a tabletop. (b) The lines of a railway track. (c) The line segments form the letter ‘L’. (d) The letter V.
options (a) and (c) are correct.
Explanation for the correct option:
Option (a) and (c): Determine the models that are perpendicular to each other.
(a) A table top's adjacent edges are perpendicular to one another.
(c) The letter 'L' is formed by line segments that are perpendicular to each other.
So, options (a) and (c) are correct.
Option (b) and (d): (b) A railway track's lines are parallel to one another.
(d) The letter V's sides are angled at an acute angle.
So, options (b) and (d) are incorrect.
Hence, options (a) and (c) are correct.