Get all the NCERT solutions for class 9 mathematics at Extramarks. Students studying with NCERT Textbook to study Maths, then you must come across the question papers. Once you have finished the lesson, you must be looking for a solution to these exercises. Extramarks provides complete NCERT Solutions for CBSE Lines and Angles for Class 9 question paper in one place. Visit the Extramarks site for more modules and subjects for NCERT solutions.

2.  A line is a one-dimensional figure that has no thickness and which extends infinitely in
both the directions. A line segment is a part of a line whose both ends are fixed.
 Two angles are adjacent, if they have a common vertex, a common arm and their non-
common arms are on different sides of the common side. A pair of adjacent angles,
whose non-common sides lie opposite to each other at an angle of 180°, is called a
linear pair. A pair of non-adjacent angles formed by the intersection of two straight
lines is called vertically opposite angles. Vertically opposite angles are equal.
 Parallel lines are coplanar and they do not intersect each other. Transversal intersects
two or more lines. If a transversal intersects a pair of parallel lines, then pair of vertically
opposite angles is equal. pair of alternate angles is equal. consecutive interior angles
are supplementary. corresponding angles are equal

3.  Get all the NCERT solutions for class 9 mathematics at Extramarks.
Students studying with NCERT Textbook to study Maths, then you
must come across the question papers. Once you have finished the
lesson, you must be looking for a solution to these exercises.
Extramarks provides complete NCERT Solutions for CBSE Lines and
Angles for Class 9 question paper in one place. Visit the
Extramarks site for more modules and subjects for NCERT
solutions.
For more information visit and register at Extramarks website.
https://www.extramarks.com/ncert-solutions/cbse-class-
9/mathematics-lines-and-angles

4. THANK YOU!