Parallel lines are straight lines which have the same direction and so never meet. Arrowheads show lines are parallel. A straight line that cuts a pair of parallel lines is called an intersecting ...

Angles close angleAn angle is formed when two straight lines meet. around a point add up to 360°. This fact can be used to calculate missing angles. \(c\) and \(30^\circ\) are called vertically ...

Class 9 Maths Chapter 6 Lines and Angles is available here for download in PDF format. We have provided here the latest edition of the chapter which is published by the NCERT on its official website.