CBSE Class 7 Maths, Chapter 7: A Tale of Three Intersecting Lines
NCERT Ganita Prakash Part 1, pages 146–172. 15 topics, about 4 days of study at 20 to 30 minutes a day.
Topics in this chapter, with textbook pages
- Introductionpage 146
- 7 1 Equilateral Trianglespages 146–148
- 7.2Constructing a Triangle When its Sides are Givenpages 148–150
- Constructpages 150–151
- Are Triangles Possible for any Lengths?pages 151–160
- 7.3Construction of Triangles When Some Sides and Angles are Givenpage 160
- Two Sides and the Included Anglepages 160–161
- Two Angles and the Included Sidepages 161–165
- Angle Sum Propertypages 165–166
- Exterior Anglespage 167
- 7.4Constructions Related to Altitudes of Trianglespages 167–168
- Altitudes Using Paper Foldingpage 168
- Construction of the Altitudes of a Trianglepages 168–169
- 7.5Types of Trianglespages 170–171
- SUMMARYpage 171
Teach this chapter at home
- A day-by-day plan with the exact textbook pages for each day.
- A step-by-step script for each day, so you know what to say and ask, written from the NCERT chapter.
- A quiz at the end and a written task you can check with a photo of the notebook.
Textbook pages follow the 2026-27 NCERT print and can differ by a page or two in older prints. Adhian Gurus is not affiliated with NCERT or CBSE.