Question

If line $AB$ and $BC$ make angle ${90}^o$ between each them, then these lines will be known as -

• A. Perpendicular Lines
• B. Parallel Lines
• C. Coinciding lines
• D. None of the above.

Answer 1

The correct option is A Perpendicular Lines

Those lines which make ${90}^o$ with each other are known as perpendicular lines.

In the above figure, AB and BC are perpendicular to each other $(AB\perp BC).$


Parallel lines are shown in the above figure. They do not intersect even after extending them.
Lines coinciding or overlapping each other make $0^o$ angle between them.

Hence, Option$\left(a\right)$ correct.