NCERT Exemplar Class 9 Maths Unit 6 Lines and Angles

Candidates can download NCERT Exemplar Class 9 Maths Unit 6 from this page. The exemplar has been provided by the National Council of Educational Research & Training (NCERT) and the candidates can check it from below for free of cost. It contains objective, very short answer type, short answer type, and long answer type questions. Along with it, the answer for each question has also been provided. From the NCERT Exemplar Class 9 Maths Unit 6, candidates can understand the level and type of questions that are asked in the exam.

Click Here for Class 9 Maths Notes

NCERT Exemplar Class 9 Maths Unit 6 Lines and Angles

NCERT Class 9 Maths Unit 6 is for Lines and Angles. The type of questions that will be asked from NCERT Class 9 Maths Unit 6 are displayed in the below provided NCERT Exemplar Class 9 Maths Unit 6. With the help of it, candidates can prepare well for the examination.

Also Check: NCERT Solutions for Class 9 Maths

Main Concepts and Results

Complementary angles, Supplementary angles, Adjacent angles, Linear pair, Vertically opposite angles.

If a ray stands on a line, then the adjacent angles so formed are supplementary and its converse,
If two lines intersect, then vertically opposite angles are equal,
If a transversal intersects two parallel lines, then
(i) corresponding angles are equal and conversely,
(ii) alternate interior angles are equal and conversely,
(iii) interior angles on the same side of the transversal are supplementary and conversely,
Lines parallel to the same line are parallel to each other,
Sum of the angles of a triangle is 180°,
An exterior angle of a triangle is equal to the sum of the corresponding two interior opposite angles.