You can download the NCERT Solutions for Class 7 Maths Chapter 6 The Triangle And Its Properties. Prescribed textbook for CBSE is standard VII NCERT course book for Maths.
Exercise 6.1
Exercise 6.2
Exercise 6.3
Exercise 6.4
Exercise 6.5
CBSE Syllabus NCERT in Hindi Medium NCERT Books NCERT Solutions