# NCERT Class 7 Mathematics Solutions: Chapter 6 – the Triangle and Its Properties Exercise 6.2 Part 2 (For CBSE, ICSE, IAS, NET, NRA 2022)

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1. Find the value of the unknown interior angle in the following figures:

Answer:

(i) Consider

And

Exterior angle = Sum of interior opposite angles

(ii) Consider

And

Exterior angle = Sum of interior opposite angles

(iii) Consider

And

Exterior angle = Sum of interior opposite angles

(iv) Consider

And

Exterior angle = Sum of interior opposite angles

(v) Consider

And

Exterior angle = Sum of interior opposite angles

(vi) Consider

And

Exterior angle = Sum of interior opposite angles