**The Triangle and Its Properties ****Exercise 6.2 ****NCERT Solution for Class 7 Maths Chapter 6**

**The Triangle and Its Properties ****Exercise 6.1**

**The Triangle and Its Properties ****Exercise 6.3**

**The Triangle and Its Properties ****Exercise 6.4**

**The Triangle and Its Properties ****Exercise 6.5**

**Exercise 6.2**

**Q.1:- Find the value of the unknown exterior angle x in the following diagrams:**

** **

**Solution 1:-**

**Formula:-** Exterior angle = Sum of interior opposite angles.

Solution 1.(i) :- x = 70º+50º = 120º

Solution 1.(ii) :- x = 65º+45º = 110º

Solution 1.(iii) :- x = 30º+40º = 70º

Solution 1.(iv) :- x = 60º+60º = 120º

Solution 1.(v) :- x = 50º+50º = 100º

Solution 1.(vi):- x = 60º+30º = 90º

**Q.2:- Find the value of the unknown interior angle x in the following figures: **

**Solution 2:-**

**Formula:-** Exterior angle = Sum of interior opposite angles.

Solution 2.(i) :- 115º = x+50º;

x = 115º – 50º = 65º.

Solution 2.(ii) :- 100º = x+70º;

x = 100º – 70º = 30º.

Solution 2.(iii) :- 125º = x+90º;

x = 125º – 90º = 35º.

Solution 2.(iv) :- 120º = x+60º;

x = 120º – 60º = 60º.

Solution 2.(v) :- 80º = x+30º;

x = 80º – 30º = 50º.

Solution 2.(vi):- 75º = x+35º;

x = 75º – 35º = 40º.

**NCERT Solutions for Class 7 Math, Chapter 6 – The Triangle and Its Properties, ****Exercise-6.2**