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.
When two lines intersect, the opposite (X) angles are equal. In the diagram above, the two green angles are equal and the two yellow angles are equal.
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 ...
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