Question

Which of the following are the perfect models of two perpendicular lines?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer: (C), (D)

The correct options are
C

3

D

4

Corners of a triangular table may or may not be perpendicular to each other.

Railway tracks are parallel.

But the adjacent walls of a room are perpendicular to each other, as also the line segments that make the 'T' shape.