GEOMETRICAL CONCEPTS

1. POINT-A point is an exact location in space.It has no size,length and breadth .
2. LINE SEGMENT-A line segment is the shortest distance between two points.
3. LINE-A line is a line segment extending infinitely in both direction.
4. RAY-A ray is a line with an initial but no end point.
5. PLANE-A plane is a two-dimensional surface that extends infinitely in all direction.
6. CONCURRENT POINTS-Three or more lines in a plane intersecting each other at a common point are called concurrent lines.The common point where the lines intersect,is called concurrent points.
7. PARALLEL LINES-Lines that are always at the same distance from each other i.e,lines do not meet are called parallel lines.
8. INTERSECTING LINES-Lines that meet or cross each other at a point are called intersecting lines.
9. PERPENDICULAR LINES-Lines that intersects at right angle are called perpendicular lines.