A line that makes a right angle
A perpendicular line is a straight line that intersects another straight line at right angles or 90 degrees on all four sides.
A perpendicular line is two lines that look like a plus +. If they're not perpendicular, they don't cross with 90 degree angles.
It looks like a plus sign (+)
A straight line that intersects another straight line at 90 degrees
It is a straight line that intersects another straight line at right angles or 90 degrees.
"Perpendicular" is a straight line at a 90 degree angle from a line it touches or intersects. There is no line "straighter" than a perpendicular line, that I know of.
That is impossible because it can only have 1 perpendicular line so if it has 2 it wouldn't be a triangle.
Like __/ or \__. (in between a straight line and a right angle (perpendicular lines)
Two lines are perpendicular when they cross at right angle like the corner of a piece of paper.
A line which forms a right angle with another line (think an upside-down T) Actually it doesn't have to be upside-down...
Line AB is perpendicular to BC. you can say this like; Line AB is at a right angle to BC