What are Perpendicular Lines? Perpendicular Definition & Examples

GCSE Parallel and Perpendicular Lines Name perpendicular Key Takeaways · Parallel lines have the same slope · Perpendicular lines have slopes that are opposite reciprocals In other words, if m=ab, perpendicular Things to Remember · The perpendicular lines perpetually cross each other at an angle of 90° · The two lines are perpendicular only if the slope of one line is

perpendicular At right angles to one another Can be of two lines, two planes, a line and a plane, or a line and a surface From: perpendicular in The Concise Oxford