Collinear: Points are those points that lie

Collinear points are those points that lie on the same straight line. It is not necessary that they should be co-planar but they must lie on the same straight line. Explore the formal definitions, properties, examples, and applications of collinear points in geometry with expert insights and updated explanations for 2025. Collinear points are three or more points that lie on the same straight line. The word ‘Collinear’ is a compound word that is made of two words: ‘co’ meaning togetherness and ‘linear’ meaning a line. Learn all about collinear points in geometry with simple definitions, real-life examples, and step-by-step methods to prove collinearity using slope, area, and vectors. Perfect for students and math enthusiasts.