INTRODUCTION OF LINES AND TYPES OF LINES.pptx

Introduction of lines and types of lines:parallel lines,intersecting lines,perpendicular lines with diagrams.

1. LINES M .MONICA SREE PEDAGOGY OF MATHEMATICS

2. INTRO D UCTION A line can be long or short. A line can be flat or slant or vertical. If a line is rotated in any direction , it remains to be a line.

3. line A line can be defined as a straight set of points that extend in opposite directions It has no ends in both directions(infinite) It has no thickness It is one-dimensional

4. LINE SEGMENT A line segment is part of a line which has defined endpoints. It has a beginning point and an ending point.

5. T Y PES OF LINES In Geometry, there are basically four types of lines. They are: Horizontal Lines Vertical Lines Parallel Lines Perpendicular Lines

6. HORIZONTAL LINES When a line moves from left to right in a straight direction, it is a horizontal line.

7. VERTICAL LINES When a line runs from top to bottom in a straight direction , it is a vertical line.

8. PARELLEL LINES When two straight lines don’t meet or intersect at any point, even at infinity , T hen they are parallel to each other. 

9. PERPENDICULAR LINES When two lines meet or intersect at an angle of 90 degrees or at a right angle , T hen they are perpendicular to each other.

10. RAY A ray is a part of a line that has one endpoint (i.e. starting point) and it extends in one direction endlessly.

11. conclusion In conclusion these are lines and types of lines and ray used in geometry.