NCERT Class 7 Mathematics Solutions: Chapter 6 –The Triangle and its Properties Exercise 6.2 Part 2

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Understanding of interior opposite angles

Understanding of Interior Opposite Angles

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

Triangle Made with 50 Degree and 70 Degree Angle

Triangle in 50 Degree and 115 Degree Angle

90 Degree and 125 Degree Angle Given in Triangle

60 Degree and 120 Degree Angle Are Given

Triangle Which is Made with 80 Degree and 30 Degree Angle

Triangle Made with 35 Degree and 75 Degree Angle

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