Angles and Perpendicular Lines - Geometry - CK-12

Perpendicular - perpendicular In geometry, two geometric objects are perpendicular if their intersection forms right angles at the point of intersection called a foot perpendicular Perpendicular lines have opposite reciprocal So if slope is -45, the

perpendicular Two lines are perpendicular if and only if the product of their slopes is -1 If the slopes of two lines which are perpendicular are m1