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Perpendicular Lines are a pair of lines that always intersect each other at right angles . Learn the properties, formula and examples of Perpendicular Lines in this article. In geometry, two geometric objects are perpendicular if they intersect at right angles, i.e. at an angle of 90 degrees or π/2 radians. The condition of perpendicularity may be represented graphically using the perpendicular symbol, . Perpendicular intersections can happen between two lines (or two line segments), between a line and a plane, and between two planes. Perpendicular is also used as a noun: a perpendicular is a line which is perpendicular to a given line or plane ... Learn about parallel and perpendicular lines . Get their definitions, properties, and examples in everyday life. Learn how to use algebra to find parallel and perpendicular lines with examples and exercises. Parallel lines have the same slope, perpendicular lines have negative reciprocal slopes, and vertical lines are parallel to themselves.
