NCERT Class 9 Mathematics Chapter 6 Lines and Angles focuses on fundamental geometric concepts. It covers types of angles, intersecting lines, parallel lines and transversal properties. Key theorems, such as corresponding angles and alternate interior angles, are essential for Class 9 Maths Chapter 6 solving problems. To prepare effectively, students should practice Class 9 Mathematics NCERT Solutions, revise important questions and attempt MCQs. Using formula sheets, worksheets and online tests helps in mastering Class 9 Maths Chapter 6 and scoring well in math exams.