Which of the following are models for perpendicular lines:
(a) The adjacent edges of a table top.
Adjacent edges of table top make perpendicular angle.
(b) The lines of a railway track.
Lines of railway track do not make perpendicular angle. They are parallel to each other.
(c) The line segments forming the letter ‘L’.
Yes, right angles are formed in ‘L’.
(d) The letter V.
Right angle is not formed when we write ‘V’.
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