If lines were not perpendicular,they would either be intersecting or parrallel.
A trapezium has no right angles therefore there are no perpendicular lines. If it had perpendicular lines, it would be a square or rectangle.
If the walls in your house were not perpendicular they would probably topple over and you would no longer have a daily life for perpendicular lines to affect.
An example of a perpendicular line is a 4 way intersection at a stop sign. Another example would be a window that has 4 smaller squares in it.
A circles has no perpendicular lines. Perpendicular lines are two straight lines that join forming 90 degree angles. They are found in squares, rectangles, and right-angled triangles. A circle is made by one line that is not straight but is curved. If you drew a circle, rectangle, right-angled triangle, or cross in the circle, then the circle would contain perpendicular lines. But the circle itself would have no perpendicular lines.
Perpendicular lines cross creating 90 degree angles. Examples would be intersections in city blocks or a cross.
Orthogonal lines or perpendicular lines
A plus sign (+) would be a pair of perpendicular line segments.
Perpendicular lines intersect at a 90 degree angle. Parallel lines do not intersect, nor would they ever intersect if continued infinitely.
I believe they have Negative Slopes as stated by my Geometry Book. "Perpendicular Lines Have Slopes Which Are Negative ___"
No _______ Paralell lines would be as follows | | or _ _ These can not intercept. However, perpendicular lines will always intercept.
You would use this: ┴