In elementary geometry, the property of being perpendicular (perpendicularity) is the relationship between two lines which meet at a right angle (90 degrees). A line is said to be perpendicular to another line if the two lines intersect at a right angle.Click to see full answer. Likewise, people ask, what is a perpendicular angle in math?Perpendicular means “at right angles”. A line meeting another at a right angle, or 90° is said to be perpendicular to it. If they met at some other angle we would say that AB meets DF ‘obliquely’. Move the point A around and create both situations.Secondly, what is perpendicular example? Perpendicular – Definition with Examples Two distinct lines intersecting each other at 90° or a right angle are called perpendicular lines. Example: Here, AB is perpendicular to XY because AB and XY intersect each other at 90°. Non-Example: The two lines are parallel and do not intersect each other. Also question is, how do you find the perpendicular angle? Perpendicular lines are lines that intersect at right angles. If you multiply the slopes of two perpendicular lines in the plane, you get −1 . That is, the slopes of perpendicular lines are opposite reciprocals .Are perpendicular lines always right angles?Two lines are perpendicular if and only if they form a right angle. Perpendicular lines (or segments) actually form four right angles, even if only one of the right angles is marked with a box.