Question

Which ofthe following are models for perpendicular lines:

(a) Theadjacent edges of a table top.

(b) Thelines of a railway track.

(c) Theline segments forming the letter ’L’

(d) Theletter V.

Answer 1

(a) Theadjacent edges of a table top are perpendicular to each other.

(b) Thelines of a railway track are parallel to each other.

(c) The line segments forming the letter ’L’ areperpendicular to each other.

(d) Thesides of letter V are inclined at some acute angle on each other.

Hence, (a)and (c) are the models for perpendicular lines.