Question

define perpendicular line​

Answer 1

Answer:

heya❤

Perpendicular means "at right angles". A linemeeting another at a right angle, or 90° is said to be perpendicular to it.

Answer 2

Answer:

In geometry, a branch of mathematics, perpendicular lines are defined as two lines that meet or intersect each other at right angles (90°). 

Perpendicular lines can be found everywhere around us, like at street intersections, in rectangular window panes.