Find the value of the unknown exterior angle x in the following diagrams:

Since, Exterior angle = Sum of interior opposite angles, therefore
(i) x = 50° + 70° = 120°
(ii) x = 65° + 45° = 110°
(iii) x = 30° + 40° = 70°
(iv) x = 60° + 60° = 120°
(v) x = 50° + 50° =100°
(vi) x = 60° + 30° = 90°

Class 7 Maths Chapter 6 Exercise 6.2

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